Skip to content

Fat burners promise quick weight loss—but experts warn of risks

From caffeine to **green tea extract**, these supplements promise miracles—but science tells a different story. Could they do more harm than good?

In this image I can see the person's photo. To the side of the photo I can see many bottles and few...
In this image I can see the person's photo. To the side of the photo I can see many bottles and few pills in it.

Fat burners promise quick weight loss—but experts warn of risks

Fat burners are dietary supplements that promise to help people lose weight and achieve a more toned body. These products claim to work by speeding up metabolism, cutting fat absorption, or reducing appetite. But experts warn that their effects are often overstated—and safety is not guaranteed.

Many fat burners contain ingredients like caffeine, green tea extract, L-carnitine, and cayenne pepper extract. Some of these, such as caffeine and green tea, have been linked to minor weight loss in studies. However, most supplements have not undergone rigorous scientific testing.

The U.S. Food and Drug Administration (FDA) does not regulate fat burners, meaning manufacturers can make claims without proof. Some products even include dozens of ingredients, making it hard to predict their impact on health. This lack of oversight raises concerns about potential side effects and interactions with medications. Health professionals advise caution, especially for those with existing medical conditions. Natural alternatives, like coffee, green tea, protein-rich foods, and high-fibre options, may offer safer ways to support weight management. Yet, no supplement can replace a balanced diet and regular exercise.

Fat burners do not eliminate fat cells but may slightly influence weight through metabolism or appetite changes. Without strong scientific backing and proper regulation, their risks often outweigh the benefits. Anyone considering these supplements should consult a doctor first to avoid harmful effects.

Read also:

Latest