Food advice by cycle phase usually arrives as a meal plan: this week these foods, next week those. The evidence for specific diets per phase is weak. The evidence that appetite itself shifts is stronger, and it is the part worth understanding.
What the evidence supports
A 2025 systematic review and meta-analysis found that energy intake is higher in the luteal phase than in the follicular phase, with a crude difference of roughly 168 kcal per day. In other words, eating more in the week before a period is a documented average, not a lack of willpower. The size of the shift varies a lot between people and between studies.
What is not established
There is no current consensus on which foods are sufficiently supported to recommend broadly for cycle-related symptoms. A 2024 systematic review concluded that some nutritional practices may help reduce symptoms, and recommended treating each person's symptoms individually. Research here is also limited by design: women have historically been underrepresented in nutrition studies, and many studies look at single time points rather than following the same person across a full cycle.
What to track instead
What's worth tracking
- One word about food each day: good, rushed, did not care
- Hunger level and any specific cravings
- Your cycle day each time you log
- At least 2 to 3 full cycles before calling it a pattern
If stronger hunger or a certain kind of craving shows up in the same stretch across most of your recent cycles, you can plan meals and snacks around it instead of being surprised by it. If it does not repeat, you do not need a phase-by-phase diet.
When it's worth talking to a doctor: if appetite changes are extreme, come with significant unintended weight change, or you find yourself restricting or bingeing, talk to a doctor or another health professional. This article is not medical advice.
Sources
- Rogan MM, Black KE. Dietary energy intake across the menstrual cycle: a narrative review. Nutrition Reviews, 2023;81(7):869 to 886. doi:10.1093/nutrit/nuac094.
https://doi.org/10.1093/nutrit/nuac094 - Tucker LA et al. Effect of the Menstrual Cycle on Energy Intake: A Systematic Review and Meta-analysis. Nutrition Reviews, 2025;83(3):e866. doi:10.1093/nutrit/nuae068.
https://doi.org/10.1093/nutrit/nuae068 - Brown N et al. Nutritional practices to manage menstrual cycle related symptoms: a systematic review. Nutrition Research Reviews, 2024;37(2):352 to 375. doi:10.1017/S0954422423000227.
https://doi.org/10.1017/S0954422423000227
See if it repeats for you.
Questions
Do people really eat more before their period?
On average, yes. A 2025 meta-analysis found higher energy intake in the luteal phase than in the follicular phase, by roughly 168 kcal a day. Individual differences are large, and some people notice no change.
Should I eat differently in each phase of my cycle?
There is no consensus on which foods to eat in which phase. Noticing your own appetite across a few cycles is better supported than following a fixed plan.