Yes, but mostly for performance rather than hormones. A refeeding day brings calories up to about maintenance, mostly from carbohydrates, which refills muscle glycogen so you can train hard during a cut. Leptin rises for roughly a day or two afterward and then falls again, so the reliable payoff shows up in your next heavy session, not in your metabolism.
Why a Refeed Is a Training Tool
Most refeed advice focuses on leptin restoration, the idea that a high carb day resets the hormones that fall during dieting. Research consistently suggests that carbohydrate overfeeding raises leptin more than fat overfeeding does. It also suggests the rise is temporary and that one day does little to reverse adaptive metabolic slowdown.
The effect on glycogen is easier to rely on. After weeks of restriction, heavy compound lifts and higher-rep work often feel flat. In a randomized trial of resistance-trained participants, Campbell and colleagues (2020) found that 2-day carbohydrate refeeds each week during dieting helped preserve fat-free mass better than continuous restriction. That makes a refeed for strength something you can test against your training log.
How to Set Up a Refeeding Day
Use these targets as a starting point:
- Calories: raise intake to estimated maintenance. Don't go far above it.
- Carbohydrates: 4-6 g per kg of bodyweight.
- Protein: 1.8-2.0 g per kg. Keep it steady rather than raising it.
- Fat: drop to about 0.5-0.8 g per kg. This leaves room for carbs without overshooting.
- Timing: refeed on the day before your hardest session of the week.
- Frequency: leaner lifters may benefit from 1-2 refeeds per week. Lifters with more body fat can often refeed every 10-14 days.
Here is an example for an 85 kg lifter: about 425 g carbs, 160 g protein, and 55 g fat, which comes to roughly 2,800 kcal. Choose low-fat, familiar foods such as rice, potatoes, oats, fruit, and bread.
How This Fits Into Your Training Log
After three or four refeeds, compare the top sets you logged the day after each refeed with your other sessions. You can ask the Kenso AI coach to compare your post-refeed top sets against the rest of your cut.
Judge the Refeed by Your Sessions, Not the Scale
Scale weight usually rises the morning after a refeed because glycogen is stored with water. This is expected, not fat gain, and it generally clears within a few days. If you sync bodyweight through Apple Health, look at the weekly trend instead of single readings.
The real test is whether your training holds up. If your logged load and reps on key lifts stay stable through a cut, the refeed is doing its job. If they keep sliding, a single high carb day may not be enough. A longer diet break at maintenance may serve you better, and the MATADOR trial (Byrne et al., 2018) is a useful reference on that approach. Kenso's progression engine makes these trends visible session by session, so you can decide from data rather than feel.
The Bottom Line
Carb cycling for lifters works best when it has a clear purpose. Place the refeed before your hardest session, keep calories near maintenance, and judge results by performance over several weeks. Calorie cycling is valuable for performance because it helps you keep strength through a cut, not because it changes your hormones.
FAQ
Is a refeeding day the same as a cheat day?
No. A refeed is planned, carbohydrate-focused, and capped near maintenance calories. A cheat day is unstructured and often high in fat, which does less for glycogen.
Does a high carb day restore leptin?
Only briefly. Leptin typically rises for a day or two after a carbohydrate-heavy day and then returns to dieting levels. Sustained recovery generally requires a longer period at maintenance.
When should strength athletes schedule a refeed?
Schedule it the day before your most demanding session, such as heavy squats or deadlifts. This puts your glycogen at its highest when you need it most.
How do I know if refeeds are working?
Compare the loads and reps you log after refeeds with your other sessions during the same cut. Stable or improving top sets suggest the strategy is helping.
Should I refeed if I'm not in a calorie deficit?
Usually not. Refeeds offset the effects of restriction. At maintenance or in a surplus, your glycogen is already well supplied.
If you want to see whether your refeeds are actually protecting your strength, log every session in Kenso and let your training history give you the answer.