Intermittent fasting shows promise but carries hidden health risks for some

Intermittent fasting, also known as intermittent fasting, has gained attention for its potential health benefits, including weight loss and improved blood sugar control. The practice involves eating only within an 8-hour window each day, followed by a 16-hour fast. But while research highlights advantages, experts also warn of risks for certain groups.

The fasting method may improve insulin sensitivity, helping cells manage blood sugar more effectively. This can lead to lower levels of fat, cholesterol, and even a reduction in fatty liver—especially when paired with exercise. Some studies suggest these benefits stem from simply eating less overall.

Yet the positive effects disappear once regular fasting stops. For older adults, the approach could backfire, as prolonged fasting may cause the body to break down muscle instead of fat. A recent study also linked 16-hour daily fasting to a higher risk of cardiovascular death, raising concerns.

While intermittent fasting might counter obesity and diabetes, human research remains limited. Experts urge caution for those with diabetes, heart disease, or other pre-existing conditions. Though no official warnings exist in Germany or Switzerland, a Canadian study noted increased eating disorder risks among young people.

Intermittent fasting offers possible health perks, like weight management and disease prevention, but it is not essential for everyone. The method carries risks, particularly for older individuals or those with certain medical conditions. Anyone considering it should weigh the evidence and consult a healthcare professional first.