Compensation appeared over 24 weeks of supervised exercise
Moving from a single session to a sustained program changes the question. Weight compensation means losing less weight than expected from the energy expended in exercise. It is the gap between expected and observed weight loss. A compensation figure therefore does not mean that participants necessarily gained that amount of weight, and it is not a direct measure of what they ate after one workout.[16]
The E-MECHANIC randomized controlled trial investigated this in 198 adults with overweight or obesity over 24 weeks. Randomization assigns participants to groups by chance so researchers can compare interventions. The study compared a no-exercise control group with two supervised exercise groups prescribed different amounts of energy expenditure. The per-protocol analysis, covering participants included on the basis of following the study protocol, contained 171 people, of whom 72.5% were women.[16]
The lower-dose group was prescribed exercise expenditure of 8 kcal per kilogram of body weight per week. The higher-dose group was prescribed 20 kcal per kilogram per week. These were expenditure targets, rather than a single exercise duration shared by everyone. The trial compared prescribed energy expenditure, rather than exercise time alone.[16]
Average compensation was 1.5 kg in the lower-dose group and 2.7 kg in the higher-dose group. Their 95% confidence intervals were 0.9–2.2 kg and 2.0–3.5 kg, respectively. Compensation differed significantly between the exercise groups. These figures describe how far observed weight loss fell short of the study’s expectation, rather than the amount of food energy replaced at a particular meal.[16]
Energy intake was estimated using doubly labeled water, a method used to evaluate energy expenditure and derive intake estimates. This approach went beyond relying only on participants’ accounts of what they ate. With adjustment for changes in resting metabolic rate, estimated intake increased by an average of 90.7 kcal/day in the lower-dose group and 123.6 kcal/day in the higher-dose group. The control-group change was −2.3 kcal/day. The increases in the exercise groups were significant compared with the control group.[16]
The 95% confidence interval was 35.1–146.4 kcal/day for the lower-dose group and 64.5–182.7 kcal/day for the higher-dose group. For the control group it was −58.0 to 53.5 kcal/day. Estimates without the resting-metabolic-rate adjustment gave similar results.[16]
Resting metabolic rate and physical activity outside the prescribed exercise did not change differently among the groups. In this trial, increased intake and appetite explained the compensation; changes in metabolism or activity outside structured exercise did not. That is a finding about this trial and its measurements, rather than a reason to assume the same explanation for every person whose weight changes less than expected.[16]
The broader evidence was less uniform. A 2021 systematic review and meta-analysis considered 48 articles on exercise training in adults with overweight or obesity. The median intervention duration was 12 weeks. Among studies rated fair or good in quality, daily intake did not change significantly from before to after training. A separate postintervention comparison with no-exercise controls showed an average difference of 102 kcal, with a 95% confidence interval of 1–203 kcal. The standardized effect was judged small or negligible.[3]
Study quality also limits the interpretation. Of the 48 studies, 39 were rated poor, 7 fair, and 2 good. Daily intake was assessed by self-report in 22 articles, objectively in 4, with a combination of both in 4, and calculated from doubly labeled water in 1. The number of papers alone cannot tell you how reliably eating was measured. Measurement methods are especially relevant when the question concerns small changes repeated over time.[3][16]
The review also found negligible-to-small increases in fasting hunger and dietary restraint, a decrease in disinhibition, and some favorable changes in satiety and food reward or preferences. Dietary restraint concerns controlling intake; disinhibition concerns a tendency for that control to loosen. Greater hunger and reduced susceptibility to overconsumption can thus appear together. A stronger desire to eat is not automatically the same finding as less controlled eating.[3]
初日の汗は、予約した人だけが持ち帰れる。
Some people and exercise conditions show increased appetite
A 2018 review emphasized substantial individual variation in responses to exercise. The evidence did not support a simple division based on sex or body fatness alone. Habitual physical activity was another possible influence: people who were more active in everyday life might adjust intake more closely to changes in energy balance. That possibility does not provide a rule for predicting an individual’s dinner.[5]
An increase in appetite also appeared in a 2025 randomized crossover trial in 20 healthy, physically inactive adults whose average age was 21 years. In a crossover design, the same participants experience different conditions in sequence. The study compared 40 minutes of light-intensity cycling with 40 minutes of moderate-to-vigorous cycling. Subjective appetite and desire to eat increased after exercise, without a difference in the increase between intensities.[13]
The comparator was another exercise intensity, rather than rest. Absolute intake did not differ significantly between intensities, while relative intake was lower after the higher-intensity condition. Desire for high-fat foods relative to low-fat foods, and for savory foods relative to sweet foods, also increased after exercise. These changes did not differ by intensity. The trial therefore does not show that exercising increased meal intake compared with doing no exercise.[13]
Water-based activity provides another qualification. A meta-analysis of 8 acute exercise studies in adults found that freely chosen intake after water-based exercise was an average of 330 kJ higher than after a non-exercise control condition. The 95% confidence interval was 118–542 kJ. Yet the direct comparison between water-based and land-based exercise found a mean difference of 78 kJ, with a confidence interval of −176 to 334 kJ, which was not statistically significant.[18]
Water temperature mattered in another comparison. Intake after exercise in cold water at 18–20°C was higher than after exercise in water at 27–33°C. The mean difference was 719 kJ, with a 95% confidence interval of 222–1215 kJ. That temperature comparison came from 2 studies. The comparison with rest included 8 studies, and the direct comparison with land-based exercise included 5. These are different pools of evidence, rather than interchangeable versions of one comparison.[18]
The review also examined hunger and appetite-related hormones, but variation among studies was too large to combine those outcomes in a meta-analysis. The pooled food-intake result does not establish a single pooled hormonal explanation. Nor can findings about exercising in water be used to infer an appetite effect of hot yoga. The environment and the tested activity are part of the result.[18]
Exercise intensity and fat use, and morning versus evening exercise, have their own discussions elsewhere in this feature. For appetite, the central task is to connect the activity you actually perform with the meal that follows. A finding from a cycling-intensity comparison should keep its cycling comparator; a cold-water result should keep its water-temperature conditions.
In the longer trial, participants with greater compensation also reported stronger beliefs that healthy behavior could offset unhealthy behavior. Greater appetite, cravings for sweet foods, sleep disturbance, and worsening bodily pain were reported alongside greater compensation. These accompanying changes offer things to notice; they do not prove that one belief or symptom caused another.[16]
At the shop on the way home, you can separate two questions: whether you are hungry now, and whether you want something extra because you worked hard. Both concern your actual evening, but they describe different reasons for adding food. The exercise record may contain time spent moving; the extra items in the shopping basket belong to a separate decision.
Common misconceptions
“Exercise always makes you hungry enough to replace everything you burned” does not fit the acute-exercise meta-analyses. Over short observation periods, absolute intake was largely unchanged or, in a more specific participant group, decreased slightly. Increased intake did appear in the 24-week trial in adults with overweight or obesity. A statement about compensation needs to specify its timescale.[2][6][16]
“If exercise lowers my appetite, it will definitely make me lose weight” goes beyond the evidence. Subjective feelings, hormones, and measured intake do not necessarily change together. A response to one bout of exercise cannot determine long-term weight change. The immediate appetite result tells you about the measured period, while the weight question needs longer observation.[7][8][14]
“Women or people with overweight are especially likely to eat everything back” is also too simple. The review examining adiposity and sex did not find evidence that those characteristics alone explained appetite or intake responses to acute or ongoing exercise. It did suggest that greater habitual activity might help people adjust intake to changes in energy balance, while stressing variation between individuals.[5]
What you can do today
- Prepare your usual dinner after exercise. Check your hunger before automatically choosing a larger serving or extra snack to replace the energy used. In the 47-person trial, a 60-minute treadmill session did not significantly increase intake at the later buffet.[7]
- If you are usually inactive, choose land-based exercise you can manage instead of increasing intensity solely to suppress appetite. The cycling trial in inactive adults found no significant difference in absolute intake between light and moderate-to-vigorous exercise, although appetite and food cravings rose after both intensities.[13]
- Record your hunger when you get home on an exercise day, then record what you ate after dinner in a separate entry. The meal trials measured appetite and actual intake separately.[7][14]
- On a water-exercise day, decide what you will eat after returning home before you leave. After swimming, check whether you add to that planned amount on impulse. Higher intake after cold-water exercise was reported in the comparison of 18–20°C with 27–33°C water.[18]
- If ongoing exercise brings less weight change than expected, review extra food, hunger, sweet-food cravings, sleep, and pain together. The trial reporting these changes followed participants for 24 weeks. Consult a doctor if strong hunger or anxiety around food persists.[16]
Keep exercise and dinner in view at On the Shore Tachikawa
Keeping exercise in your routine also means thinking about the dinner that follows it. On the Shore Tachikawa offers a place to continue the exercise habit, with its location and opening hours helping you consider the trip home and your evening meal together.
The lava-stone hot yoga studio is open from 8:00 to 23:30 every day. It is a 1-minute walk from the North Exit of JR Tachikawa Station, at 3F Etoile Bldg, 2-14-10 Akebonocho, Tachikawa, Tokyo. Many of our yoga instructors speak English, and the studio’s owner often helps guests from the US bases in English herself.
Pregnant guests cannot join lava-stone hot yoga; room-temperature maternity yoga is available. Guests told by a doctor not to exercise cannot join. A 60-minute trial yoga lesson costs ¥1,980 including tax, with 2 bath towels, 1 face towel, and mat rental. The prices page and trial booking provide the cost and booking information.
There are 25+ kinds of yoga lessons, alongside room-temperature yoga, Pilates, women-only kickboxercise, boxercise, HIIT, and personal training. See the studio website for the available options.
References
- Acute Exercise Effects on Appetite and Energy Intake in People Living With Overweight and Obesity: A Systematic Review and Meta-Analysis. — Nan Li et al., 2025, International journal of sport nutrition and exercise metabolism. DOI: 10.1123/ijsnem.2025-0078
- Effect of exercise training interventions on energy intake and appetite control in adults with overweight or obesity: A systematic review and meta‐analysis — K. Beaulieu et al., 2021, Obesity Reviews. DOI: 10.1111/obr.13251
- Acute Exercise and Hormones Related to Appetite Regulation: A Meta-Analysis — M. Schubert et al., 2014, Sports Medicine. DOI: 10.1007/s40279-013-0120-3
- Acute and Chronic Effects of Exercise on Appetite, Energy Intake, and Appetite-Related Hormones: The Modulating Effect of Adiposity, Sex, and Habitual Physical Activity — James L. Dorling et al., 2018, Nutrients. DOI: 10.3390/nu10091140
- Acute exercise and subsequent energy intake. A meta-analysis. — M. Schubert et al., 2013, Appetite. DOI: 10.1016/j.appet.2012.12.010
- Acute effects of exercise on appetite, ad libitum energy intake and appetite-regulatory hormones in lean and overweight/obese men and women — JA Douglas et al., 2017, International Journal of Obesity (2005). DOI: 10.1038/ijo.2017.181
- The impact of acute exercise on appetite control: Current insights and future perspectives. — A. Thackray et al., 2023, Appetite. DOI: 10.1016/j.appet.2023.106557
- Moderate-to-vigorous and light-intensity aerobic exercise yield similar effects on food reward, appetitive responses, and energy intake in physically inactive adults — Shu-Shih Hsieh et al., 2025, European Journal of Clinical Nutrition. DOI: 10.1038/s41430-025-01574-5
- Appetite and Energy Intake Regulation in Response to Acute Exercise — T. Halliday et al., 2021, Medicine and science in sports and exercise. DOI: 10.1249/mss.0000000000002678
- Effect of different doses of supervised exercise on food intake, metabolism, and non-exercise physical activity: The E-MECHANIC randomized controlled trial. — Corby K. Martin et al., 2019, The American journal of clinical nutrition. DOI: 10.1093/ajcn/nqz054
- Influence of water-based exercise on energy intake, appetite, and appetite-related hormones in adults: A systematic review and meta-analysis. — Marie J. Grigg et al., 2022, Appetite. DOI: 10.1016/j.appet.2022.106375
Cover photo: Drinking water is offered to runners passing a marathon water station. (Photo: Dirk Ingo Franke / CC BY-SA 3.0 / Wikimedia Commons)
Information as of October 2026. For your own health, consult a doctor.
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初日の汗は、予約した人だけが持ち帰れる。
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