Diet

The Diet section of The Body Optimist takes a critical, informed look at weight-loss diets: their promises, yo-yo dieting and the risks to physical and mental health. You won't find any weight-loss plans here, only the tools to understand diet culture, spot empty promises and build a calmer relationship with food.

What the Diet section covers

• Trendy diets decoded: keto, intermittent fasting and other weight-loss promises, put under the microscope.
• Yo-yo dieting: why trying to lose weight fast so often backfires.
• Your relationship with food: telling physical hunger apart from the urge to eat, and stepping out of constant control.
• Eating disorders: the disorders that can hide behind “healthy” eating and the signs worth taking seriously.
• Getting support: knowing when to see a registered dietitian rather than following a plan on your own.

Why do restrictive diets so often fail in the long run?

When you restrict what you eat, your body adapts: it uses less energy and hunger ramps up. Once the diet ends, the lost weight often comes back, sometimes with extra: that's yo-yo dieting, also called weight cycling. Expert reviews of popular weight-loss methods have flagged the risks of dieting without medical supervision, including nutritional imbalances, loss of muscle mass and weight regain. Repeated restriction can also damage your relationship with food and raise the risk of eating disorders. If you want to change your habits, a doctor or registered dietitian can help you move forward without putting your health at risk.

Our approach

This section doesn't promote any weight-loss diet. In line with the Health at Every Size approach, we talk about the pleasure of eating and your real needs rather than pounds to lose. Any weight-loss story we share is a personal account, not a model to follow. Our articles do not replace advice from a healthcare professional.

Frequently asked questions

What is yo-yo dieting?

Yo-yo dieting, or weight cycling, is the repeated pattern of losing and regaining weight that often follows restrictive diets. You can end up regaining more than you lost, and each new round of restriction wears down both your mood and your relationship with food.

What is diet culture?

Diet culture is the set of beliefs that equates thinness with health and personal worth and presents weight loss as a goal everyone should pursue. It shows up in “before and after” photos, foods labeled “good” or “bad” and constant comments about bodies. Recognizing it makes it easier to step back, a theme we explore in the Body positive section.

Do you need to diet to be healthy?

No. Health depends on many factors: varied eating, physical activity, sleep, mental well-being and regular medical care. Public health nutrition guidelines generally focus on variety and balance rather than restriction, and a doctor can assess your health without making weight loss the starting point.

Want to go further? Explore the Health section and the Obesity section, move for the fun of it with Well-being, and eat a wide variety of foods with the Nutrition section.