How and when we eat isn’t the only thing you need to keep in mind if you want to follow a diet that’s circadian-rhythm-friendly. Certain foods have been shown to support circadian rhythm, too – although more research is needed into this growing area of nutrition.

Below are just a few foods which experts believe could have an indirect impact on circadian rhythm function.

1. Tryptophan-heavy foods

As a precursor to melatonin, tryptophan is an essential amino acid which can aid the healthy functioning of the circadian rhythm.

“Foods containing tryptophan, such as turkey, bananas and dairy products, may influence the synthesis of melatonin, a hormone that regulates sleep,” Berry explains. Other sources of tryptophan include peanuts, tofu and fish.

2. Tart cherries

“Tart cherries may support circadian rhythm because consuming these at night can lead to higher levels of melatonin, which helps the body to sleep,” Windas says.

This is primarily believed to be because tart cherries increase the bioavailability of tryptophan, giving the body more fuel to produce melatonin. You’ll normally find tart cherries in juice or frozen form.

3. Prebiotics

Previous studies have shown that prebiotics – which serve as food for good gut bacteria – can help us to bounce back from instances of circadian rhythm disruption and make us more resilient to future issues.

Examples of prebiotics include asparagus, berries, garlic, onions, green vegetables and legumes.

Wish you had more all-day energy? Support your circadian rhythm with these body clock-friendly foods