Menstrual cycle nutrition — adapt the plan, not the number
Across your menstrual cycle, your daily energy needs don’t meaningfully change — the popular “luteal calorie bump” isn’t well supported. What helps is adapting the plan: more iron around menstruation, calcium in the luteal phase, and steady fibre. Fawna does exactly that.
What changes for you
- Calories: no reliable cycle-wide change — we don’t inflate your target.
- Menstrual phase: iron matters more as you lose blood.
- Luteal phase: calcium and steady meals can ease comfort.
- Throughout: fibre supports steady energy and digestion.
Key nutrients
| Nutrient | Daily target | Why it matters |
|---|---|---|
| Iron | ~18 mg/day | More relevant around your period as you lose blood. |
| Calcium | ~1000 mg/day | May help with luteal-phase comfort. |
| Fibre | ~28 g/day | Steady energy and digestion through the month. |
Common questions
Do I need more calories in my luteal phase?
Probably not in a way worth changing your target for — the evidence for a consistent “luteal bump” is weak. Fawna adapts the plan (iron, calcium, fibre) rather than the number.
Does cycle syncing your diet work?
Some adjustments (like more iron around your period) are well-founded; many stronger “cycle syncing” claims are not. Fawna sticks to what the evidence supports.
The evidence Moderate evidence, 2 of 3
Fawna’s guidance for this stage draws on:
- Harvey LJ et al. — British Journal of Nutrition (2005)
- Hallberg L & Hulthén L — Am. J. Clinical Nutrition (2000), iron absorption
- NICE CKS — Heavy menstrual bleeding (2023)
Grounded in the primary sources above. General information, not medical advice.
Keep reading
Nutrition that fits cycle.
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