Refeed Day Calculator
Calculate refeed day calories and macros for metabolic recovery during fat loss phases. Enter values for instant results with step-by-step formulas.
Reviewed for accuracy by Rahul Singh, Health & Wellness Specialist
Medical disclaimer: This calculator is provided for educational and informational purposes only and does not constitute medical advice, diagnosis, or treatment. Results are general estimates and may not reflect your individual circumstances. Always consult a qualified healthcare professional before making decisions about your health.
Refeed Day Calculator
Calculator
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Formula: Refeed Calories = TDEE x 1.05; Refeed Carbs = (Refeed Cal - Protein Cal - Reduced Fat Cal) / 4
Worked example — Refeed: 2,730 kcal | 160g protein | 39g fat | 436g carbs (+195g vs cutting)
Formula
Refeed Calories = TDEE x 1.05; Refeed Carbs = (Refeed Cal - Protein Cal - Reduced Fat Cal) / 4
Refeed calories are set at approximately 105% of estimated TDEE to provide a slight surplus. Protein remains constant from the cutting phase. Fat is reduced to 70% of cutting levels to make room for more carbs. All extra calories come from carbohydrates to maximize leptin restoration and glycogen replenishment.
Worked Examples
Example 1: Lean Male Refeed Day Setup
Problem:A 175 lb male at 14% body fat, cutting on 2,100 kcal (160g protein, 55g fat), has been dieting for 6 weeks.
Solution:Estimated TDEE: 2,100 + 500 = 2,600 kcal Refeed calories: 2,600 x 1.05 = 2,730 kcal Protein: 160g (same) = 640 kcal Fat: 55 x 0.7 = 39g = 347 kcal Refeed carbs: (2,730 - 640 - 347) / 4 = 436g Cutting carbs: (2,100 - 640 - 495) / 4 = 241g Carb increase: +195g | Calorie increase: +630 kcal Frequency: Every 5-7 days (14% BF)
Result:Refeed: 2,730 kcal | 160g protein | 39g fat | 436g carbs (+195g vs cutting)
Example 2: Female Competitor Refeed
Problem:A 130 lb female at 16% body fat, cutting on 1,500 kcal (130g protein, 40g fat), 8 weeks into prep.
Solution:Estimated TDEE: 1,500 + 500 = 2,000 kcal Refeed calories: 2,000 x 1.05 = 2,100 kcal Protein: 130g (same) = 520 kcal Fat: 40 x 0.7 = 28g = 252 kcal Refeed carbs: (2,100 - 520 - 252) / 4 = 332g Cutting carbs: (1,500 - 520 - 360) / 4 = 155g Carb increase: +177g | Calorie increase: +600 kcal Frequency: Every 7-10 days (16% BF)
Result:Refeed: 2,100 kcal | 130g protein | 28g fat | 332g carbs (+177g vs cutting)
Frequently Asked Questions
What is a refeed day and how does it differ from a cheat day?
A refeed day is a strategically planned increase in calorie intake, primarily through carbohydrates, during a fat loss phase. Unlike a cheat day where you eat anything without tracking, a refeed day has specific calorie and macro targets. The purpose is to temporarily restore leptin levels, replenish muscle glycogen, support thyroid function, and provide psychological relief from dieting. Refeed calories are typically set at or slightly above your total daily energy expenditure, with the increase coming almost entirely from carbohydrates while protein stays the same and fat is reduced. This controlled approach provides metabolic benefits without the excessive calorie surplus that cheat days often create.
How do refeed days help with fat loss?
Refeed days support continued fat loss by counteracting the hormonal and metabolic adaptations that occur during extended calorie restriction. The primary mechanism is restoring leptin levels, a hormone that decreases during dieting and signals your brain to reduce metabolic rate and increase hunger. Carbohydrate intake specifically boosts leptin more effectively than fat or protein. Refeeds also support thyroid hormone conversion from T4 to T3, maintaining metabolic rate. Additionally, they replenish depleted muscle glycogen stores, which improves training performance and allows you to maintain the exercise intensity needed for muscle preservation. The psychological break from restriction also improves long-term dietary adherence.
How often should you have a refeed day during a cut?
Refeed frequency depends primarily on your current body fat percentage and how long you have been dieting. Leaner individuals with body fat below 10 percent benefit from refeed days every 3 to 4 days because their leptin levels are more severely suppressed. Those at 10 to 15 percent body fat should refeed every 5 to 7 days. Individuals at 15 to 20 percent body fat can refeed every 7 to 10 days. Those above 20 percent generally only need a refeed every 10 to 14 days because they have sufficient body fat to maintain adequate leptin signaling. As your diet progresses and you get leaner, increase refeed frequency accordingly to prevent metabolic stalling.
Why should carbohydrates be the primary macro increased on a refeed day?
Carbohydrates are the most effective macronutrient for restoring leptin levels, which is the primary goal of a refeed day. Research shows that carbohydrate overfeeding increases circulating leptin by 28 percent within 24 hours, while fat overfeeding has minimal impact on leptin even at the same calorie level. Carbohydrates also replenish muscle glycogen stores that become depleted during calorie restriction, directly improving training performance. Additionally, carbs stimulate insulin release, which has anti-catabolic effects that help preserve muscle tissue. High carb intake also increases serotonin production, improving mood and reducing the psychological stress of dieting. This is why refeeds focus on carbs rather than simply eating more of everything.
What types of carbohydrates should you eat on a refeed day?
On a refeed day, prioritize complex carbohydrate sources that are low in fat to maximize glycogen replenishment without excessive calorie surplus. Excellent choices include white and brown rice, potatoes and sweet potatoes, pasta, bread, oatmeal, cereals, rice cakes, and fruits. These foods are carbohydrate-dense with minimal fat content, allowing you to hit high carb targets without dramatically overshooting calories. Avoid high-fat carb sources like pastries, pizza, ice cream, and fried foods because the fat adds significant calories without additional leptin-boosting benefit. The goal is high carbohydrate intake, not high calorie intake from mixed sources.
Should you reduce fat intake on refeed days?
Yes, reducing fat intake on refeed days is recommended to keep total calories controlled while maximizing carbohydrate intake. A typical approach is reducing fat to approximately 70 percent of your normal cutting day fat intake. Since fat has 9 calories per gram compared to 4 for carbohydrates, reducing fat by 15 to 20 grams frees up 135 to 180 calories that can be allocated to an additional 34 to 45 grams of carbohydrates. This trade allows higher carb intake for better leptin response without dramatically increasing total calories. Protein should remain unchanged on refeed days to continue supporting muscle preservation. The overall effect is a modest calorie increase with a large carbohydrate increase.
How do you time carbohydrates on a refeed day for best results?
Distribute carbohydrates throughout the refeed day with emphasis on the peri-workout window for optimal glycogen replenishment and training performance. Consume approximately 30 percent of refeed carbs in the meal before training to fuel the session, 30 percent in the post-workout meal to maximize glycogen resynthesis, and distribute the remaining 40 percent across other meals. If your refeed falls on a rest day, spread carbs evenly across 4 to 5 meals throughout the day. Eating a larger carb-focused meal in the evening can improve sleep quality through increased serotonin and melatonin production. Avoid consuming all refeed carbs in a single sitting as this reduces glycogen storage efficiency.
Can refeed days stall weight loss progress?
Refeed days may temporarily increase scale weight by 1 to 4 pounds due to increased glycogen storage and water retention, but this is not fat gain. Each gram of glycogen holds approximately 3 to 4 grams of water, so consuming an extra 200 to 300 grams of carbs can cause 800 to 1,200 grams of water weight from glycogen alone. This water weight typically dissipates within 2 to 3 days of returning to deficit eating. When evaluating progress, compare weekly weight averages rather than daily weights, and always compare your weight on the same day relative to your last refeed. Over the course of a month, properly structured refeed days should not meaningfully slow fat loss and may actually prevent plateaus.
Should you train on refeed days?
Training on refeed days is highly recommended because it creates the best conditions for utilizing the extra carbohydrates productively. The elevated glycogen stores from increased carb intake fuel more intense training sessions, and post-exercise muscle cells are primed to absorb and store glucose efficiently. Schedule your most demanding workout, typically legs or a high-volume session, on your refeed day to take advantage of the extra energy. Many athletes report their best training sessions and personal records on refeed days. The combination of full glycogen stores, improved mood from higher calorie intake, and reduced fatigue creates an ideal performance environment that also reinforces the muscle-preserving signal of resistance training.
What is the difference between a 1-day and 2-day refeed?
A 1-day refeed involves a single day of elevated carbohydrate intake and is sufficient for most individuals above 12 to 15 percent body fat. It provides a meaningful leptin boost and glycogen replenishment with minimal impact on weekly calorie totals. A 2-day refeed involves two consecutive days of higher carbs and is more appropriate for very lean individuals below 10 to 12 percent body fat, those who have been dieting for extended periods of 12+ weeks, or individuals with signs of significant metabolic adaptation. Research suggests that leptin levels continue to rise with extended carb feeding, so a second day provides additional hormonal recovery. However, 2-day refeeds add more calories to the weekly total and may slow fat loss if used too frequently.
References
Reviewed for accuracy by Rahul Singh, Health & Wellness Specialist · Editorial policy
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