- Time-restricted eating is an increasingly popular method of weight control that involves consuming all your meals and snacks within a set time period and fasting outside that period.
- Some people find that it helps them to lose weight or maintain a healthy weight, and there is some evidence that it may also lower the risk of metabolic diseases, such as diabetes.
- A new study in zebrafish has found that time-restricted eating adversely affected their fertility.
- More research is needed to determine whether similar effects might be seen in humans.
Time-restricted eating (TRE) is a form of intermittent fasting that focuses on the timing of eating, rather than on calorie intake. It involves eating all meals and snacks within a set time period — usually between 6 and 12 hours each day — and consuming only water and calorie-free drinks outside that time.
A person on a TRE plan will choose the eating window that best suits their lifestyle. Many people find that by restricting the time during which they can eat, they tend to eat less, which may make it a straightforward method of weight control. The practice has become
Studies have shown some benefits from TRE.
However, not all results have been entirely positive.
Now, a study has found that, in zebrafish, TRE had negative effects on the quality of both sperm and eggs and that the adverse effects continued after usual feeding resumed.
The study, from the University of East Anglia (UEA), U.K., is published in Proceedings of the Royal…
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