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Doctors Reveal Whether You Really Need To Exercise To Lose Weight

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Doctors Reveal Whether You Really Need To Exercise To Lose Weight

It’s been a hotly debated topic for years: Is focusing on your diet or your workout regimen better when you’re trying to lose weight? While research over time has generally found that dietary changes will have a larger impact on your weight than exercise alone, health experts still stress the importance of exercise in a holistic weight loss program—and here’s why.

On its own, “exercise is not a very effective tool for weight loss,” says Alexandra Sowa, MD, an internal medicine doctor specializing in preventative health, nutrition, and obesity medicine and the author of the forthcoming book The Ozempic Revolution. “But exercise is still important for cardiovascular health, overall longevity, and cognitive health.”

To simplify things, Mir Ali, MD, the medical director of MemorialCare Surgical Weight Loss Center at Orange Coast Medical Center in Fountain Valley, California, says to consider this comparison: A 155-pound adult will burn about 200 calories doing a 30-minute low-impact aerobics class. A tall Starbucks mocha is nearly 300 calories. Based on the math alone, you’d have more impact on your weight loss efforts—and save more time—by simply skipping the mocha.

Research has had similar conclusions. One scientific review concluded that doing consistent moderate-intensity aerobic exercise, like walking for 30 minutes a day, five days a week, likely won’t lead to any significant weight loss in most people without dietary changes. Another older scientific analysis of six studies in the Journal of the Academy of Nutrition and Dietetics found that people who focused on diet and exercise to lose weight didn’t end up dropping more pounds in a six-month period than people who solely altered their diet.

Exercise isn’t completely meaningless when it comes to weight loss, though.

In fact, some data suggest that a combination of dietary changes and exercise is superior to help you drop pounds. “The majority of weight loss involves diet, but exercise plays a role,” says Dr. Ali. “It can help support weight loss, and maintain your metabolism.” But if you don’t tweak your diet first and foremost, you likely won’t see notable results, he notes.

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Also, exercise may make more of a difference in your waistline over the long term. That same study in the Journal of the Academy of Nutrition and Dietetics that found exercisers and dieters lost similar amounts of weight after six months did determine that people who focused on combining diet and physical activity lost more weight over a year than interventions based on diet or physical activity alone.

“Exercise is still important for cardiovascular health, overall longevity, and cognitive health.”

Working out beyond what’s recommended may have an impact, too. One study found that people who burned at least 400 to 500 calories a workout, five or more days a week, experienced weight loss without nutrition interventions. That’s why you may notice that you slim down if you’re, say, training for a half marathon or distance bike race.

Exercise can also help prevent weight gain and support weight maintenance once you reach your goal weight, Dr. Sowa says. That’s why she suggests that her patients “get into the habit of exercise to maintain weight loss and improve long-term health.”

Meet the experts: Mir Ali, MD, is the medical director of MemorialCare Surgical Weight Loss Center at Orange Coast Medical Center in Fountain Valley, California. Michael Snyder, MD, is the director of the Denver Center for Weight Loss and Bariatric Surgery Foundation and a medical advisory team member at FuturHealth. Alexandra Sowa, MD, is an internal medicine doctor specializing in preventative health, nutrition, and obesity medicine and the author of the forthcoming book The Ozempic Revolution.

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Whether strength training is more impactful for weight loss than cardio is still up for debate.

Strength training is generally seen as a wise move because it helps to build muscle mass. The more muscle you have, the harder your body works at rest to burn calories, Dr. Ali explains. It’s also important to focus on increasing muscle mass as you lose weight because your body tends to lose lean muscle mass along with fat. Not only can that mess with your overall strength, it can also lower your metabolism, so you end up not burning as many calories at rest as you did in the past, Dr. Ali adds.

Of course, exercise of any sort still burns calories, and that shouldn’t be minimized. “But exercise can also increase feelings of hunger,” Dr. Ali notes. So, if you’re not being mindful of your diet while working out, you may end up taking in the same amount of calories that you burned during your workout or even more.

When paired with nutrition changes, a workout regimen that prioritizes resistance training and includes some aerobic activity is the sweet spot for weight loss.

Something else to consider: Doctors who prescribe weight loss medications usually recommend that you don’t go overboard with cardio when you’re taking something like Ozempic. Among other things, the medications tend to lower your blood sugar and exercise has a similar impact. Having blood sugar that’s too low raises your risk of uncomfortable symptoms like a rapid heartbeat, shaking, and feeling weak. “If you overdo it with aerobic exercise, it can lower your sugar further,” Dr. Ali says. “However, the point of excessiveness is different for each person.” Meaning, some cardio is probably fine. But training for a marathon while taking Ozempic may be something to discuss and plan for with your physician.

One 2022 scientific review published in the journal Obesity Reviews found that a mix of resistance training and calorie restriction was the most effective at reducing body fat compared to these interventions on their own. However, the researchers also found that a combination of resistance training and aerobic exercise also lead to “significant results.” Worth noting: Resistance training alone was also the most effective for increasing lean mass.

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A 2021 analysis of 12 reviews and 149 studies also found that aerobic exercise and HIIT workouts were effective at weight management, while resistance training helped lower the odds of lean muscle mass loss while people lost weight. “These findings show favorable effects of exercise training on weight loss and body composition changes in adults with overweight or obesity,” the researchers concluded.

How To Lose Weight Effectively—Beyond Your Exercise Routine

Doctors recommend these tips whether you’re losing weight with or without medical intervention (say, with the help of a weight loss medication). Experimenting with all of the tips below can help you achieve noticeable and lasting weight loss results—and complement a workout plan too.

1. Prioritize protein.

Everyone should be eating protein, but Dr. Sowa says it’s “very, very important” when you’re on a weight loss journey. “It’s satiating and fills you up,” she says. Protein also helps to prevent muscle loss as you lose weight—a common issue—and to improve your muscle mass, she says.

Everyone’s protein needs are slightly different, but the bare minimum recommendation is 0.35 grams of protein per pound of body weight every day if you’re not active, according to The Academy of Nutrition and Dietetics. But many doctors say you’ll likely need more, especially if you’re active and strength training. That can put you more at something like 0.73 to 1 grams of protein per pound of body weight (or about 30 to 35 grams of protein per meal), per the National Academy of Sports Medicine.

2. Ramp up your fiber intake.

Fiber has a lot going for it. “Fiber slows digestion, keeps you feeling full, and helps regulate blood sugar levels,” says Michael Snyder, MD, director of the Denver Center for Weight Loss and Bariatric Surgery Foundation and medical advisory team member at FuturHealth. That translates to you feeling fuller, longer after meals and makes it less likely you’ll overeat.

The U.S. Dietary Guidelines for Americans recommend that adult women have 22 to 28 grams of fiber a day, but most Americans aren’t getting that. Consider incorporating fiber-rich foods like fruits, vegetables, whole grains, and legumes into your diet. (Just ramp up your fiber intake slowly, or you’ll end up dealing with uncomfortable bloating and gas.)

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3. Get plenty of quality sleep.

Sleep hasn’t been a huge focus with weight loss in the past, but doctors swear it’s a crucial element. When you don’t get enough sleep, your body craves more energy—and that can cause you to reach for more food, Dr. Sowa says.

Dr. Snyder agrees: “Poor sleep disrupts hunger hormones, leading to overeating.”

Everyone’s sleep needs are slightly different, but it’s generally recommended that adults get seven hours of sleep or more a night.

4. Cut out sugary beverages.

Sugary drinks like sodas and sweet teas are packed with simple carbohydrates and add empty calories to your day, Dr. Ali says. If sugary drinks are a regular part of your life, “your body will use those simple carbohydrates as a fuel source rather than burning fat for fuel,” Dr. Ali explains.

These drinks can also mess with your blood sugar, which can cause you to have energy crashes, making you more prone to overeating, Dr. Snyder says.

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5. Practice mindful eating habits.

It’s practically inevitable that you’ll have to eat in front of your computer at some point or that you’ll want to be entertained during dinner. But doing your best to focus on the food in front of you vs. your Instagram feed, and how your body feels while you’re eating can go a long way toward keeping you from overeating, Dr. Ali says.

Among other things, research has shown that mindful eating can help lower the risk of emotional eating. “If you’re more aware about what you’re taking in, you’re more likely to eat better,” Dr. Ali says.

6. Stay well hydrated.

Don’t sleep on the power of hydration. “Not getting enough fluids will make you feel more tired and rundown,” Dr. Ali says. Having enough fluids can also help you to feel fuller, longer and lower the odds you’ll overeat, he says.

Doctors generally recommend that you aim to have your pee be a pale yellow color—that indicates that you’re well hydrated. But if you want a more definitive guide, the U.S. National Academies of Sciences, Engineering, and Medicine recommends that women aim to have 11.5 cups (2.7 liters) of fluids a day from foods and drinks.

7. Make your stress management plan as foolproof as possible.

Some stress is inevitable in life, but being chronically frazzled isn’t great for your weight loss efforts. “Chronic stress increases stress hormone levels, which can lead to weight gain and dietary de-regulation,” Dr. Snyder says.

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Research shows that stress ramps up the levels of the hunger hormone ghrelin in your body, stimulating your appetite and encouraging you to eat more than you might have if you were feeling more zen.

8. Add in plenty of vegetables at every meal.

Vegetables usually contain plenty of fiber, which is useful for weight loss, as mentioned. But Dr. Sowa notes that they’re also a great way to fill up while getting in plenty of nutrients. “Vegetables are a wonderful low-calorie, high-density food,” she says.

They can also help crowd out less healthy foods from your plate, Dr. Ali says. He just suggests focusing on high-fiber, lower starch vegetables for weight loss.

9. Swap out refined grains for whole grains.

Quick primer: Refined grains have a lot of nutrients removed and include things like white pasta and white bread. Whole grains have plenty of nutrients and include things like whole wheat, oats, and quinoa.

“Whole grains have more fiber, have a lower effect on blood sugar, are more nutrient-dense, and give longer appetite satisfaction and sustained fullness,” Dr. Snyder says.

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Again, doctors stress the importance of continuing to exercise when you’re on a weight loss journey. “You still want to be active,” Dr. Ali says. “You want to at least maintain the activity that you’re already doing, and ideally increase it.”

Korin Miller is a freelance writer specializing in general wellness, sexual health and relationships, and lifestyle trends, with work appearing in Men’s Health, Women’s Health, Self, Glamour, and more. She has a master’s degree from American University, lives by the beach, and hopes to own a teacup pig and taco truck one day.

Fitness

I’ve seen some bizarre exercises online. If I were an influencer, this is the one workout I’d recommend | Devi Sridhar

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I’ve seen some bizarre exercises online. If I were an influencer, this is the one workout I’d recommend | Devi Sridhar

Are you still keeping up with your 2026 resolution to exercise more? Or perhaps you’re just trying to survive the winter doldrums, with exercise the last thing on your mind. Whatever it is, social media is alight with fitness influencers showing off all kinds of bizarre and viral exercise trends.

Take squats, a core exercise move. Those don’t seem good enough any more, so now we have Zercher squats (holding a barbell in your elbow crease like a metal baby), squats on vibration plates, squats while throwing a heavy ball and on and on. Some of these exercises may in fact be good, some useless, but because influencers can’t be seen to be doing the same thing every day, the key thing is that they’re novel and can be sold as “the little-known secret exercise that everyone should be doing”.

Then there’s adding a gimmick to an existing exercise. There’s goat yoga, puppy yoga and – my favourite new trend from the US – snake yoga, in which snakes such as pythons slither around the room and on to mats and yogis while they’re in downward dog thinking about spiritual intentions or, more likely, what’s for dinner. The marketing is that being around snakes in yoga can help overcome a fear of snakes while also building flexibility. Cross two things off your to-do list at once!

Here’s my public health take: fear of snakes is rational. About 5.4 million people are bitten by snakes each year. Evolution spent thousands of years instilling that fear in us – for good reason.

Why do bizarre fitness trends go viral, and why do they appeal to something within us? I think it has to do with boredom, the need for novelty and Fomo. Exercise can feel boring: going out running for the same 5k or heading to the gym to the same equipment and space. This is true also for yoga, which can feel slow and lack excitement.

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The idea of trying something new is appealing, plus there is a constant push by certain fitness influencers implying that they know something we don’t. Some of them play on health anxiety and a desire to optimise with the “best” exercise to maximise your time and results: how to get a six-pack in two weeks or how to lose 10kg in five days (both pretty much impossible, by the way). Plus they’re telling us to buy a supplement or try a new juice cleanse that will be the missing piece to make us feel better by March.

Fitness trends sell that hope of feeling better. Take Hyrox, a hybrid endurance event where super-fit people pay good money to push sleds, throw wall balls, burpee-jump across the room and run between various stations. It’s impressive to watch and looks great on social media – which feels essential these days – and it’s a clear way to show your friends how fit you are. But it also reflects the push towards extreme, complicated and injury-prone exercise.

I’m going to say something you don’t want to hear, especially if you love Hyrox or snake yoga: none of this is necessary. If your goal is to feel strong, move better, stay pain free and live longer, you need three things: cardio exercises, resistance training and mobility training.

You don’t need weights, reptiles or cameras. It sounds simple, but what makes exercise hard isn’t the actual movement. It’s finding the time and routine to make it sustainable and part of your daily life. Which brings me to the most untrendy thing I can offer you: a 13-minute workout you can do anywhere, with or without weights. This is my default on busy days, and when I’m at home I have an 8kg sandbag on hand to add in.

All you need is a timer on your watch or phone. Start with three minutes of cardio to get warm and your heart rate up, whether it’s jogging on the spot, jumping jacks or just marching. Then it’s three minutes of legs, rotating between five each of narrow squats, broad squats, backward lunges, forward lunges and calf raises. Then on to three minutes of upper body, moving between five each of narrow push-ups, wide push-ups and tricep dips. Time to move on to core with a one-minute plank (either on your hands or forearms) and one minute of glute bridges (lifting your hips off the floor while lying on your back). For the final two minutes, just stretch out, whether that’s standing and reaching for your toes, lying on your back and moving your legs right and left like windshield wipers or sitting cross-legged and folding forward.

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That’s it. Do this a couple of times a week if you can. Will you see it go viral on socials? No. Will it get sponsored by a supplement company? No. Will it increase your healthy life expectancy and make you feel happier? Public health evidence suggests yes. The real challenge, it turns out, isn’t finding the latest hack or trend. It’s sticking with a (snake-free) routine, even when the novelty wears off and 2026 resolutions fade from memory.

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The exercise more important than walking – especially if you’re older

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The exercise more important than walking – especially if you’re older

Walking is brilliant. It’s accessible, affordable and enjoyable, plus it comes with many health benefits, which is why it forms the backbone of most government exercise guidance.

But it is strength that underpins all movement. If you don’t have the strength to get out of your chair and put one foot in front of the other, what good is being told to walk more?

This was the key takeaway from recent research led by Dr Michael LaMonte and his team at the University at Buffalo, which shows the immense value of building skeletal muscle with strength training. It found that, in more than 5,000 women aged 63 to 99, greater strength levels were strongly linked to a lower risk of death from any cause.

Maintaining muscle should be seen as a savvy investment. Muscle allows you to stand, move and remain independent, all while offering further perks that extend far beyond physical function. It powers our breath, regulates blood sugar levels, emits anti-inflammatory myokines and constantly chats with other bodily systems to keep things running smoothly. In short, muscle is the medical marvel you already own.

Here is how to maintain your body’s largest, and in some ways smartest, organ for decades to come.

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Why strength training matters

There is a wealth of research on the merits of aerobic exercise, such as walking, running, swimming and cycling. This is a major reason why it dominates government physical activity guidelines. There is far less research into strength training, and much of the data available centres around young, fit men.

By looking at the impacts of strength training in previously understudied demographics, such as women aged 60 and above, studies like this one from the University at Buffalo could change future exercise recommendations for the better.

“When women go through menopause and lose their body’s own secretion of oestrogen, the loss of skeletal muscle mass increases rapidly,” says Dr LaMonte. “We typically see a change in their body composition, where they start losing muscle and holding fat in the belly area, particularly. That’s not healthy.”

Both men and women also tend to become less active as they grow older, which can contribute to sarcopenia – the age-related loss of strength and muscle. Both menopause and sarcopenia are inflammatory processes, Dr LaMonte says.

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Read more: Sitting all day wreaks havoc on your hips and spine – here’s how to stop that from happening

There is limited research around strength training in older populations – but that is changing (Getty/iStock)

This shift impacts fitness. “Muscle strength is fundamental for getting the body from point A to point B, especially when you’re working against gravity.” But it also throws off chemical signalling between skeletal muscle and other systems in the body, such as the heart.

“Fat tissue tends to secrete chemicals called cytokines that are pro-inflammatory,” Dr LaMonte explains. “There’s quite a bit of evidence to show that, when skeletal muscle contracts, it secretes counterbalancing cytokines that are anti-inflammatory.

“This was discovered by a scientist named Bente Pedersen in the 2000s. She published a compelling series of papers showing that these cytokines, which she called myokines, had regulatory functions outside the muscle itself.”

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Exactly how skeletal muscle interacts with other crucial systems in our body is unclear, Dr LaMonte says. But it is constantly in deep discussions with them, and it is looking to help out where it can. For this reason, if you can keep your muscles strong and healthy, they can be a powerful force for good.

Read more: Expert warns why this daily habit is shortening your life – even if you exercise

Maintaining healthy muscle not only ensures independence and physical capacity, it can also lead to deeper-lying health benefits

Maintaining healthy muscle not only ensures independence and physical capacity, it can also lead to deeper-lying health benefits (Getty/iStock)

3 simple ways to gauge your strength

Dr LaMonte’s research used a series of simple tests to assess the strength levels of 5,472 women aged 63 and above:

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  • Grip strength: a dynamometer was used to assess grip strength, with people asked to hold their upper arm at their side, elbow bent at a right angle, then squeeze the machine as hard as possible. This is an indication of upper-body strength.
  • Sit-to-stand: people were timed to see how quickly they could stand up from a chair, then sit back down again five times with their arms across their chest. This is an indication of lower body strength.
  • Gait speed: a timer was used to see how long it took subjects to walk 2.5m.

Women with greater grip strength – a good signifier of overall strength levels – and faster sit-to-stand times had a “significantly lower death risk over an eight-year follow-up”, the study discovered.

“Gait speed is another one of the most potent predictors of mortality,” Dr LaMonte adds.

“I’d like to see the health care profession embrace functional health as much as they do the things they can prescribe drugs for – because you can’t prescribe a drug for this. It’s a behaviour, and I think that’s why it probably doesn’t get the same kind of attention. Nobody makes money from this, but people do die from it.”

Dr LaMonte also suggests another bonus test anyone can use as a sign they need to work on their strength levels:

  • The pickle jar test – this is a proxy for any everyday task. If you notice it starts to feel more difficult, this is a good indication that your fitness has decreased, and it would be beneficial to gain strength and muscle through exercise.

“When you can’t open the pickle jar any more, don’t just assume they’re making the jars harder to open,” Dr LaMonte says. “That’s a good indicator that you might be at a phase of life where your strength levels have changed unknowingly.

“The same applies when you go to pick up a grandchild or climb the stairs, and you find you’re huffing and puffing – it could simply be that you’re getting more out of shape, or in the worst case scenario, it could be indicative of disease.

“Be mindful of your body. It’s going to tell you where you’re at, and we don’t want an injury to be that indicator.”

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Read more: Four things you can do to reduce inflammation and cut heart disease risk, according to the experts

When daily tasks such as climbing the stairs start to feel markedly harder, it could be a sign that your strength levels are decreasing, Dr Michael LaMonte says

When daily tasks such as climbing the stairs start to feel markedly harder, it could be a sign that your strength levels are decreasing, Dr Michael LaMonte says (Getty/iStock)

How to start strength training at any age

The human body is a representation of the life it has lived, informed by genetics and altered by myriad interventions along the way. A robust life, filled with challenging physical tasks, often builds a robust body. As a result, someone who has always been active will likely find it easier to remain more active as they age.

“I wouldn’t want to convey a message that age becomes a constraint for people doing what they enjoy,” says Dr LaMonte. “I know people in their late, late years who still enjoy going to gyms and lifting weights. It’s effective for their strength goals, and the social aspect keeps them healthy in other ways.”

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However, if you are new to strength training and exercise generally, you need to start more conservatively. As with any new skill, there is an obligatory learning curve that allows your mind and body to adapt to the fresh stimulus without being overwhelmed.

“You can use simple bodyweight exercises like press-ups against a wall or sit-to-stands – US adults in their 70s and 80s spend around nine-and-a-half hours each day sitting down, so you could break this up by doing a few sit-to-stands every hour, or each time there is an advert if you are watching television,” Dr LaMonte says.

“Resistance bands are another good option, or even using soup cans or books as a form of resistance provides stimulus to skeletal muscles.”

The common denominator behind these exercises is the act of overcoming resistance. That resistance needs to be slightly challenging, relative to your individual strength levels, to trigger an increase in muscle and strength levels. By consistently doing a task that requires you to be stronger, you are telling your body you want it to adapt to handle it better. If the task feels easy, the body has no reason to make any changes.

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“If someone finds that lifting a soup can or book [for example, pressing it overhead 10 times] challenges them, that’s probably the level they should be working at, and they should not be trying to do more,” says Dr LaMonte. As you grow stronger, you can then gradually progress to slightly heavier items to continue to increase your strength levels.

“Older adults in particular should consult with their health care provider about the safety of beginning muscle-strengthening exercises,” Dr LaMonte adds.

In short, building and maintaining strength is important at any age. And if you do fall below this study’s 63-99 demographic, any strength and muscle you can develop now will likely serve you well for the rest of your life.

“We want to live as long as we can healthily, and I think resistance exercises are a part of that,” Dr LaMonte concludes. “When we can no longer get out of the chair and move around, we are in trouble.”

Read more: After 50, you need to train smarter – the eight rules for strength training in midlife, according to experts

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Read more: The science-backed two-minute daily workouts for improving heart health

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How much exercise is enough? A local doctor says you only need 15 minutes a day – WTOP News

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How much exercise is enough? A local doctor says you only need 15 minutes a day – WTOP News

Exercise is part of a healthy lifestyle and its benefits are well known and have been for a long time. What is only recently proven by doctors is just how much exercise makes a difference for one’s longevity.

By now, most people understand that exercise is part of a healthy lifestyle; its benefits are well known and have been for a long time. What is only recently proven by doctors is just how much exercise makes a difference for one’s longevity.

For most people who sit at desks or behind the wheel all day, the problem is often finding time to work out. The good news, according to Dr. Julie Chen, an internal medicine and lifestyle medicine doctor at Kaiser Permanente in Gaithersburg, is that a daily exercise routine can be broken down into brief segments.

“The general recommendation is for 150 minutes of moderate activity per week,” Dr. Chen said. “So that is roughly about 30 minutes a day, five days a week. But the important point is it does not have to all be done at once. You can break it up into shorter segments of exercise and still get the same great benefits.”

And those benefits can be tremendous. Chen said that studies have shown going from no exercise a day to only 15 minutes of total exercise a day can “can actually decrease their risk of death, death from all causes, by about 14%.”

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“Any movement is actually better than being sedentary,” she said.

Movement can be divided up into short segments throughout the day instead of in one long, strenuous workout and it can still offer the same reductions in the risk of certain diseases.

Now, you might understand there are benefits of exercising for short periods of time, several times per day; but you might be wondering how you can get in the gym several times a day.

Chen advocates for what she calls “exercise snacks” — “small bursts of physical activity that you can get in, two to three minutes at a time throughout the day.”

For example, taking the stairs or doing squats while putting groceries away, walking around the office on a phone call or planking while your dinner is in the microwave. Chen said try to do whatever it takes to get a few minutes of movement in a few times a day.

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Chen is also a big fan of fitness apps, including the ones that come built into our smartphones and watches: “Studies have shown that that is really motivating that you can actually track your progress in your app. You can see your trends.”

“Consistency is a really big goal of this effort, and so if you look at your trends over time, that’s going to be a really rewarding aspect of trying to improve your health,” she added.

Beginning an exercise regimen doesn’t need to be complicated or time-consuming. You don’t need to splurge on workout clothes or a gym membership; you just need a few minutes, several times a day, to start reaping the benefits.

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