---
title: Why do I crave chocolate before my period? The science
description: If you crave chocolate before your period, it's tied to hormone shifts and mood, not a lack of willpower. Here's what changes and what helps now.
url: https://niyora.com/why/do-i-crave-chocolate-before-my-period/
---

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- Why do I crave chocolate before my period?

Question

# Why do I crave chocolate before my period?

Craving chocolate before your period is common and it tracks with the drop in progesterone and estrogen in the days before bleeding. Chocolate itself doesn't fix the mood dip that comes with PMS, and giving women progesterone directly hasn't cut the craving in trials either. The craving is a real, fairly ordinary signal, not a character flaw.

Updated 13 October 2026

Niyora editorial

## At a glance

- Close to half of women who crave chocolate or sweets do so mainly in the days right before their period, in a study that tracked women with PMS through six cycles (1).
- In that same trial, giving women progesterone directly didn't reduce the craving, so a simple progesterone drop isn't the full explanation (1).
- Desire for fatty foods, not carbs or drinks on their own, rises specifically in the days before a period compared with right after one (2).
- Higher levels of certain inflammation markers across the cycle lined up with a greater chance of moderate or severe food cravings in a two-cycle study of 259 women (4).
- Tracking what you crave and feel for two full cycles is the only reliable way to tell if the pattern genuinely moves with your period.

## Why do I crave chocolate before my period?

Craving chocolate before your period is common, and it isn't a willpower problem. A study that tracked women with severe PMS through six menstrual cycles found that roughly 40 to 50% of North American women crave chocolate or sweets at some point, and close to half of those cravings cluster specifically in the perimenstrual window, the days right around the start of bleeding (1).

That timing lines up with the drop in progesterone that happens before your period starts, which is why low progesterone became the leading explanation. But when researchers in that same trial gave women progesterone directly during the premenstrual days, the craving for chocolate or sweets didn't go down compared with placebo (1). An anti-anxiety drug tested in the same trial didn't reduce it either.

So the craving tracks with the hormone shift in timing, but it isn't simply a progesterone shortage that a pill can fix. Something else, mood, inflammation, or the pull of a familiar comfort food, is doing more of the work. The next two sections get into what that something else looks like.

## Does chocolate help with period mood swings?

Eating chocolate doesn't fix the irritability or low mood that often shows up with PMS, but it isn't doing nothing either. Eating about an ounce of 85% dark chocolate for three days before testing improved functional performance test scores across the menstrual cycle, with the biggest gain during the premenstrual phase, in a small trial of 15 trained female athletes (3). That's a measurable effect on the body, not proof that chocolate lifts mood swings.

For most women, the benefit is softer than that. Qualitative research with women who feel negatively about their bodies before their period found that giving in to a craving sometimes worked as a brief pause from strict eating rules, a moment of ease rather than a mood cure (5).

Eating a little chocolate when you want it isn't a failure, and it isn't treatment for PMS either. If anger, sadness, or anxiety are the main problem, the chocolate won't touch those directly. [The urge to binge before your period](https://niyora.com/moments/urge-to-binge/) goes further into what to do when the craving tips into something harder to stop.

## What is happening with your hormones?

In the [luteal phase](https://niyora.com/luteal-phase/), the one to two weeks before your period, progesterone and then estrogen rise and then fall sharply. That fall is the backdrop for most premenstrual cravings, but it's not acting alone.

Desire for fatty foods rises specifically in the premenstrual phase compared with the days right after a period, more than desire for carbohydrates alone or for drinks (2). Chocolate happens to be both fatty and sweet, which may be part of why it feels like the craving has your name on it.

Inflammation may also play a role. A study that followed 259 women across two menstrual cycles, taking blood samples up to eight times per cycle, found that higher levels of certain inflammatory markers lined up with a greater chance of moderate or severe food cravings, even after accounting for estrogen levels and stress (4).

Put together, several things move at once in this window: the hormone drop, a shift toward wanting fattier food, and some amount of inflammation and mood change, all overlapping in the same stretch of days.

## Is it normal, or a sign of PMDD?

Craving chocolate before your period is normal on its own and doesn't point to anything beyond common PMS. PMS covers the physical and emotional symptoms many women get in the one to two weeks before a period, symptoms that ease once bleeding starts. In a study of 230 young women, 61.3% met criteria for PMS, and those with PMS reported higher intake of ultra-processed food and higher craving scores than women without it (6).

PMDD is different: a diagnosis that requires at least five symptoms in the final week before your period, including at least one mood symptom like irritability, anxiety, low mood, or sudden mood swings, confirmed by daily tracking over at least two cycles. A craving for chocolate isn't one of the diagnostic symptoms by itself.

What matters is the whole pattern around it. If the cravings show up alongside anger you can't explain, crying, or anxiety that takes over a week of every month and then clears within a few days of your period starting, that combination fits PMDD, even if chocolate is just one piece of it. [How much is PMS affecting you?](https://niyora.com/quiz/) can help you see the fuller picture.

## What helps in the moment?

A few concrete things help when the craving hits hard tonight:

- Eat something instead of white-knuckling through it. An ounce or two of dark chocolate, paired with something that has protein or fiber, tends to leave you steadier than skipping food altogether.

- Pick dark over milk chocolate when you can. It carries more of the flavonoids and less added sugar, without claiming to fix your mood.

- Give yourself ten minutes before deciding you need more. Cravings tend to peak and ease, and a short wait tells you whether you're hungry or just keyed up.

- If what's underneath the craving is a fight with your partner or a wave of anger, naming that separately from the food helps. [Why am I so hungry before my period?](https://niyora.com/why/am-i-so-hungry-before-my-period/) goes further into the hunger side of this.

If what you need is somewhere to put the argument or the feeling behind the craving, not the craving itself, Niyora is a PMS and PMDD support app. Its Moon feature lets you write down what happened, see it from another angle, and draft a reply you can sit with for 20 minutes before you send anything.

## How do you track whether it's cyclical?

The only way to know if your chocolate cravings genuinely move with your period, rather than just happening on random hard days, is to track them. Write down three things each day for a full two cycles: what you craved, how strong it felt, and where you are in your cycle, counting from the start of your last period.

Look for a pattern. Most cravings that are hormone-linked build in the week before a period and ease within a few days of it starting. If cravings, hunger, and mood all spike together in that same window every month, that's a strong sign the pattern is real and not random.

[What to eat during the luteal phase](https://niyora.com/cycle/luteal-phase-foods/) and [PMS diet: what helps](https://niyora.com/treatments/pms-diet/) cover how to plan meals around that window once you've confirmed the pattern, instead of fighting the craving with willpower every month.

## When does this need treatment?

If the days before your period bring a week of low mood, anxiety, or anger that takes over your life every month, and that clears within a few days of your period starting, this pattern fits PMDD. Chocolate cravings on their own aren't a sign you need treatment, but the mood and functioning around them often are. Guidelines point to options like SSRIs, taken either daily or only in the days before your period, certain hormonal contraceptives, and CBT, with a doctor deciding what fits your situation.

What chocolate can do is offer quick comfort while you sort out the bigger pattern. Tracking two cycles is the step that tells you what you're actually dealing with.

When to see a doctor

See a GP or gynecologist if the week before your period costs you a week of functioning every month, or if you have thoughts of hurting yourself. Bring two months of daily notes.

From the research library

## Research on food cravings

178 studies in the library look at food cravings in PMS and PMDD. They were published from 1982 to 2026, and each one is summarised in plain English.

178

studies, 1982 to 2026

How strong the studies are

Strong study design 7
Moderate study design 70
Early or limited evidence 101
- [Systematic review, 2026Does vitamin D supplementation help PMS symptoms?Vitamin D reduced overall PMS severity and particularly helped with physical symptoms and depression, but the certainty of this evidence is very low. We cannot be confident in these findings yet and more high-quality research is needed.Strong study design](https://niyora.com/research/papers/efficacy-of-vitamin-d-supplementation-to-alleviate-premenstrual-syndrome-2026/)
- [Cohort study, 2021Are low antioxidant vitamins or high oxidative stress linked to premenstrual syndrome?This study found that oxidative stress markers were linked to more depression and food cravings symptoms and more severe PMS, but antioxidant vitamin levels were mostly not associated with PMS symptoms.Strong study design](https://niyora.com/research/papers/serum-antioxidant-vitamin-concentrations-and-oxidative-stress-markers-associated-2021/)
- [Survey study, 2016Is PMS or PMDD linked to eating disorders like bulimia and binge eating?Yes. Women with PMDD had 7 times higher odds of bulimia nervosa and women with PMS had 2.5 times higher odds of bulimia, but neither was strongly linked to binge-eating disorder.Strong study design](https://niyora.com/research/papers/association-of-premenstrual-syndrome-and-premenstrual-dysphoric-disorder-with-2016/)
- [Randomised trial, 2011Does a birth control pill reduce negative emotions, food cravings, and water retention in women with PMDD?Yes, the pill significantly reduced all three symptom clusters compared to placebo in all three treatment cycles. The greatest improvements happened in the first cycle.Strong study design](https://niyora.com/research/papers/premenstrual-dysphoric-disorder-symptom-cluster-improvement-by-cycle-with-the-2011/)
- [Review, 2001What causes PMS and PMDD, and how are they treated?PMS is caused by abnormal responses to normal hormone changes during the menstrual cycle. Treatment includes lifestyle changes like diet and exercise, and medications. SSRIs are the first-line treatment for PMDD, and calcium supplements may help.Strong study design](https://niyora.com/research/papers/evaluation-and-management-of-premenstrual-syndrome-and-premenstrual-dysphoric-2001/)
- [Review, 1997Does appetite and food cravings change during the menstrual cycle, especially in women with PMS?Yes. Energy intake is higher in the second half of the cycle (luteal phase) compared to around ovulation. Many women with PMS report carbohydrate cravings before menstruation, possibly linked to changes in serotonin levels.Strong study design](https://niyora.com/research/papers/menstrual-cycle-and-appetite-control-implications-for-weight-regulation-1997/)

### Clinical trials

- [An innovative nutraceutical formulation for appetite control and premenstrual syndrome symptom managementNo longer recruiting, Italy](https://niyora.com/research/trials/an-innovative-nutraceutical-formulation-for-appetite-control-isrctn12142665/)
- [The Effect of Laughter Therapy On The Food CravingStatus unknown, Turkey (Türkiye)](https://niyora.com/research/trials/the-effect-of-laughter-therapy-on-the-food-craving-nct05796869/)

[See all 178 studies on appetite and food cravings](https://niyora.com/research/topics/symptom-food-cravings/)

## Questions people ask

Does chocolate make PMS worse?

+

Chocolate on its own doesn't cause PMS, but high ultra-processed food intake tracks with stronger PMS symptoms and cravings in research on young women (6). Chocolate in a reasonable amount isn't the problem; a diet heavy in processed, high-sugar foods most days of the month may make premenstrual cravings harder to manage.

Why do I crave chocolate specifically before my period?

+

Chocolate cravings before a period likely combine a hormone-driven shift toward wanting fatty, sweet foods (2) with chocolate's familiarity as a comfort food. No study has found one ingredient in chocolate that causes the pull, so the craving is probably about the combination, not one chemical in the bar.

Does dark chocolate help period cramps or mood?

+

Dark chocolate hasn't been shown to directly ease period mood swings, though one small trial found it improved physical performance and reaction time in the premenstrual phase for trained athletes (3). For everyday cramps or mood, dark chocolate is a reasonable comfort food, not a treatment.

Is craving chocolate a sign something's wrong with my hormones?

+

Craving chocolate before your period is a normal response to the usual hormone swings most women have, not a sign anything is wrong. It's only worth a closer look if it comes with a week of mood symptoms every month that clears once your period starts, a pattern worth checking with daily tracking.

How long do chocolate cravings before a period usually last?

+

Chocolate cravings tied to your cycle typically build over the week or so before your period and ease within a few days of bleeding starting, matching the usual PMS pattern. If cravings stretch across most of the month instead, tracking a couple of cycles will show whether they're really cycle-linked.

## Sources

- 1. [The role of low progesterone and tension as triggers of perimenstrual chocolate and sweets craving: some negative experimental evidence](https://doi.org/10.1016/s0031-9384(99)00094-3), Physiology & behavior, 1999
- 2. [Food "cravings" and the acute effects of alprazolam on food intake in women with premenstrual dysphoric disorder](https://doi.org/10.1006/appe.1998.0222), Appetite, 1999
- 3. [Dark Chocolate Mitigates Premenstrual Performance Impairments and Muscle Soreness in Female CrossFit ® Athletes: Evidence from a Menstrual-Phase-Specific Trial](https://doi.org/10.3390/nu17081374), Nutrients, 2025
- 4. [Association of inflammation biomarkers with food cravings and appetite changes across the menstrual cycle](https://doi.org/10.1016/j.clnesp.2023.06.004), Clinical nutrition ESPEN, 2023
- 5. [Managing the premenstrual body: a body mapping study of women's negotiation of premenstrual food cravings and exercise](https://doi.org/10.1186/s40337-021-00478-6), Journal of eating disorders, 2021
- 6. [Premenstrual Syndrome, Ultra-Processed Food Intake, and Food Cravings: A New Perspective](https://doi.org/10.1002/fsn3.70520), Food science & nutrition, 2025

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On this page

- [Why do I crave chocolate before my period?](#why-do-i-crave-chocolate-before-my-period)
- [Does chocolate help with period mood swings?](#does-chocolate-help-with-period-mood-swings)
- [What is happening with your hormones?](#what-is-happening-with-your-hormones)
- [Is it normal, or a sign of PMDD?](#is-it-normal-or-a-sign-of-pmdd)
- [What helps in the moment?](#what-helps-in-the-moment)
- [How do you track whether it's cyclical?](#how-do-you-track-whether-it-s-cyclical)
- [When does this need treatment?](#when-does-this-need-treatment)
- [Research](#research)
- [Questions](#faq)

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## Keep reading

Symptom

PMS cravings before your period: why they happen and what helps

Question

Why am I so hungry before my period?

Moment

The urge to binge eat before your period

Treatment

PMS diet: what actually helps

Cycle guide

The best luteal phase foods: what to eat and why

Guide

Take the two-minute check

Condition

The luteal phase: what's happening in your body and mood