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Metabolism and weight loss: How you burn calories

No quick fix

Don't rely on dietary supplements for help in burning calories or losing weight. Products that claim to speed up metabolism usually don't live up to their claims. Some may cause bad side effects.

The U.S. Food and Drug Administration doesn't ask for proof that dietary supplements are safe or that they work. Question the claims that are made. Always let your healthcare professionals know about supplements you take.

There's no easy way to lose weight. To take in fewer calories than you burn, aim to cut 500 to 750 calories a day to lose 1 to 1.5 pounds (0.5 to 0.7 kilograms) a week. Add more physical activity to get to your weight-loss goals faster and maintain your weight loss.

A healthcare professional, such as a doctor or registered dietitian, can help you explore ways to lose weight.