Weight loss and fitness, fact-checked

Diet, exercise and weight loss:
What the evidence actually supports

Plain answers on diets, workouts, weight loss drugs and surgery, and the supplements and shortcuts sold online, with what the research shows and when to see a doctor.

Does it work? Short answers from our articles

Popular weight loss ideas, and what the research we checked says about them.

Does coconut oil help you lose weight?
The research does not back it up. A meta-analysis of 16 trials found coconut oil had no significant effect on body weight, waist size or body fat compared with other vegetable oils. Seven coconut oil claims checked →
Can taking laxatives make you lose weight?
No, not in any real sense. Laxatives treat constipation; they do not burn fat or stop your body from absorbing calories. You lose water and stool, and misuse can be dangerous. Why laxatives don't cause fat loss →
Does a sauna help with weight loss?
Not with fat. The weight you lose in a sauna is almost all water, about a pint of sweat in a short session, and it comes back as soon as you drink. Sauna benefits and safe session times →
Is green tea a fat burner?
Not in any meaningful way. Its catechins and caffeine may have a modest effect on body weight, and a Cochrane review found the loss was small and not likely to be clinically important. Green tea, weight and safe amounts →
Does creatine make you gain weight?
Yes, usually a little. The gain is not fat: it comes from extra water in your muscles at first, and later from added muscle if you train. Creatine facts and myths →
Diet or exercise: which matters more?
Both are important. If your goal is weight loss, diet usually matters more, and the two work best together. For building muscle and fitness, exercise plays the bigger role. How to balance diet and exercise →

Diets and eating plans

All 43 articles →

What popular diets involve, how much they tend to help, and the risks that come with the stricter ones.

Workouts you can start this week

Exercise burns fewer calories than most people expect, but it helps you keep weight off. These need little or no equipment.

Weight loss drugs and surgery

All 96 articles →

Prescription and surgical options, who qualifies, what they cost and what happens after.

Products and programs, reviewed

All 30 articles →

Gummies, peptides, multivitamins and paid diet programs, with what the evidence shows and what they cost.

How we write about weight loss

GetHealthyShape covers diets, exercise, weight loss drugs and surgery, and the products sold for weight loss. We check claims against published research and health agencies, and we say so when something doesn't work.

Results vary from person to person, and nothing here is medical advice. Talk to your doctor before starting a new diet, medication or supplement.

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