Best VS Worst Fat Loss Exercises (Ranked By Science)



What are the best fat loss exercises? Worst exercises for fat loss? Today my friend Kevin and I are using the world’s most accurate calorie tracker to rank 50 different exercises. Cardio exercises, strength exercises, HIIT, low intensity cardio, and more! At the end, we’ll reveal the all-time highest calorie burner. We’ll also discover which exercises burn the most calories with minimal effort and which ones are high effort but don’t actually burn very many calories. Using these findings, I’ll create the perfect fat loss workout plan guaranteed to help you lose body fat.

Link to complete ranking of exercises:

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We started out with what all the data told me was the best of fat loss exercises, high intensity training, beginning first with 60 seconds of sprinting. Then burpees and mountain climbers. With three exercises down, Sprints had taken an early lead, with burpees a close second. But so far all three challenges had put us through the ringer.

But what I’m hoping to find with this challenge are exercises for fat loss that can burn a high level of calories with a significantly lower perceived exertion. Fortunately we still had 47 exercises left to test. The data showed for each high intensity exercise we were absolutely burning through our calories even for just a 60 second workout, but so far every high calorie burning workout we tried also had an equally high perceived exertion. 

Which means we were gonna need to find a new approach for our fat loss plan: low-intensity training. First up, incline walking. Kevin was able to get through it without feeling like he was going to collapse, which meant the switch to low intensity fat loss exercises was definitely the right direction. 

But is low-intensity as effective as a fat loss workout? After speaking with Dr. Eric Helms, my takeaway was that high-intensity and low-intensity fat loss exercises are equally as effective so it depends on what you’re comfortable with and would be consistent with.

We even moved into strength training to find out if this was a better calorie burning option than cardio. As Dr. Eric Helms puts it, weight training is great for maintaining muscle mass and ensuring that the weight you lose is primarily body fat, but it’s not a great tool for fat loss itself. Don’t lift weights for the sake of trying to burn as many calories as possible or to lose fat. Lift weights because it tells your body to keep and even build more muscle as you’re losing fat, which ultimately is like most people’s goal when they’re trying to transform their body.

Something Dr. Eric Helms said gave me a lightbulb moment: I think a far better way to think about this is how do I re-engineer my life such that I’m not trying, but I’m being more active? At this point, I realized just trying to build an optimized fat loss workout plan for Kevin wasn’t going to be enough.

I needed to find a way to test how we burn calories in all areas of our life. That means testing every chore and activity you can do with your free time whether it’s vacuuming, reading, or folding the laundry and starting right off with standing. I was finally starting to build a clear picture of all the ways you can maximize calorie burn through the course of the day. For example, walking outside burned an impressive 6 calories per minute for Kevin. Although that’s almost 1/3rd of what he burned doing sprints, I’m pretty sure he’d much rather go for a 30 minute walk than suffer through 10 minutes of sprints.

Anyways, now that I have all the data, it’s time to reveal the best fat loss exercises and create the ultimate fat loss routine.

Kevin and I actually had the same top three best fat loss exercises. Sprinting, Boxing and the Devil’s Press.

Low effort fat loss exercises that still burned a decent amount of calories: longboarding, basketball, incline walking, and plain old walking outside. And high effort fat loss exercises that didn’t end up burning very many calories: power walking.

But jumping jacks, planks, crunches, and most strength exercises, also burned a surprisingly low amount of calories relative to their effort. But while it’s easy to assume the exercise that burns the most calories must be the best, my experience with Kevin has shown me it just isn’t that simple. 

Dr. Eric Helms sums it up:

I think really what we will want to think about is energy expenditure over time that I will adhere to. Think of all of these different fat loss exercises and intensities as tools, and you want to have a robust tool belt. The whole variety in your tool belt is going to make it far more likely that you could adhere to exercise long-term and get the fat loss that you’re after.

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44 Comments

  1. This was a lot of fun! Kevin still has nightmares about it though. We learned a lot from the data, and we apply all these learnings to our new app, BWS+. It's a science-backed personal trainer in your pocket that'll tell you what to do every week, just follow the plan and you'll quickly transform your body. You can try 2 weeks free over at builtwithscience.com and see the difference for yourself. Shoutout to Kevin for helping us build this amazing app!

  2. I have tried many exercise but like i dont feel that much enough nor did my weight got lost i was stuck around woth 67-60kg, and i didn't even felt any sweats on body but since i started doing the skipping started with 1k in a day which took almost 1 hr but now i can do 3k skipping in 1hr, and i can feel the sweats on face inner thigh, backwaist, around the cheast also in tummy.

  3. Great video. The applied engineering/physics/thermodynamics of this absolutely supports your findings: High intensity is more about power (like, horsepower/kilowatts) which is the time rate of expenditure of energy (kcal/Joules). (ie – how quickly you burn energy.) High intensity + high power = a lot of energy burned per unit time. Unfortunately, however, most humans can't sustain an hour of burpees. Low- and medium-intensity exercise can be sustained for longer periods and involve less fatigue/metabolic debt. Therefore you can do much more of it across, for example, one week. Result = more time spent, but also more total energy burn = better for fat loss. (Because fat is stored energy.) The best exercise for fat loss is the one that allows you to burn the most calories. With the caveat being: you have to be able to do enough of it. f the intensity is too low (watching Netflix) = 'fail'. If the intensity is too high (burpees) you tap out early = 'fail' (for fat loss – but pretty good for VO2max). The fat loss challenge is to burn as many calories as you can in the time you have, without tapping out early because the work is too hard to sustain.

  4. I play a lot of excersice games (les mills combat training, just dance, knockout league, thrill of the fight, crazy kung fu, etc..) and I always found that the calories burned shown or every single one of those, is WAY more optimistic than what you actually burned. I could never find how this was calculated exactly, but I did find some devellopers saying they set it more optimistic on purpose to make the user feel more satisfied. which will make you return to their game, even if it's lying to you. I'm guessing it's the same for fitness equipment.

  5. Even if you lean on the treadmill you are still sustaining your own weight against the machine, it doesn't mean you are somehow weightless, also you are sustaining it with a body part that's not used to do that which means you are reducing the weight for your legs, but your arms are doing work as well

  6. The chess claim is more correct than presented here. When playing chess at a reasonable to high level against an equal opponent, a match can burn as many calories as a brisk walk. Would be nice to retest this with a few actual >1500 ELO chess players.

    Of course, Rogan's claim is exaggerated. But not entirely made up.

  7. Yeah but you have to consider total time. There are very few people who will do devils press for 30 minutes straight. Most will probably do 20 tops (we are talking about people who need to lose weight). But a low intensity exercise like weighted rucking you can easily do for an hour or more if you so desire.

    The total amount burned will be simply much higher because you can do it nonstop for longer, and it feels way less fatiguing which in turn will people actually do it rather than finding excuses to avoid the crazy stress on the system that comes with the high intensity exercises. Sure on paper the high intensity exercises burn the most per minute but after 5-10 minutes people will be absolutely gassed and stop doing them.

    I have a moderate hill close to my house and I walk up for 30 minutes and down for 30 minutes after which I burn between 500-550kcal. If I added weight to this this would increaseby a lot. There is no way I would do devils press until I burn 550kcal.

  8. Hello Jeremy Ethier,

    I’m from India, and I really enjoy your videos. Your content quality is genuinely excellent, especially the way you explain fitness and nutrition with proper science and clarity. It makes your videos very easy to understand and actually useful for people on their fitness journey.

    I also want to say that I liked the Hindi dubbing of your videos. I would respectfully request you to keep improving the Hindi dubbing and localization, because many people in India prefer Hindi and it will help a much larger audience understand your valuable content.

    Thank you for making such informative and high-quality videos. Your work is helping many people become healthier and more disciplined.

  9. I have watched a few of your fat loss videos and the running theme is always there are some workouts that burn more calories but if you can’t stick with it then this may not be the ones for you. I found rowing works the best for me for cardio. Start with something you will stick with, you can always add more later on when you feel strong enough.

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