While high B12 intake usually isn't harmful and excess is excreted, some evidence suggests B vitamins, including B12, may help regulate periods, especially for heavy bleeding (hypermenorrhea), by supporting red blood cell production and hormone balance, though research is mixed, with some studies showing no significant link between B12 and PMS risk; it's best to discuss supplements with a doctor, especially if you have irregular periods or heavy flow.
[3] They both suggested that Vitamin B12 and B-complex cause an increase in estrogen level, which leads to endometrial proliferation. Prolonged bleeding decreases the thickness of endometrium in hypermenorrhic women and causes irregular bleeding, so these two vitamins play treatment roles.
Taking doses of vitamin B-12 might cause:
Among the micronutrients gaining attention for their potential impact on reproductive health is vitamin B12 (cobalamin) (3–5). Vitamin B12 not only plays a critical role in DNA synthesis and cellular metabolism but may also affect hormone levels, including testosterone (6–8).
While magnesium and vitamin C supplements are generally safe, they could potentially influence your menstrual cycle by mildly affecting hormonal balance and estrogen levels.
The most common reasons are:
Common causes of a missed or late period include:
Hormonal imbalances show up as symptoms like fatigue, mood swings, weight changes, irregular periods, skin issues (acne), hair changes, sleep problems, brain fog, low libido, digestive issues, and temperature sensitivity, affecting energy, body functions, and mental well-being, often linked to stress, thyroid, or reproductive hormones.
B12 deficiency can trigger specific food cravings, most notably for meat, fish, or eggs, as the body seeks animal-based sources to replenish the vitamin, especially in those on vegetarian/vegan diets or older adults. While cravings for sugary or salty foods can also signal general B-vitamin issues, the distinct urge for protein-rich animal products is a key indicator, but professional testing is crucial for confirmation.
Vitamin B12 is a nutrient that helps keep your body's blood and nerve cells healthy and helps make DNA, the genetic material in all of your cells. Vitamin B12 also helps prevent megaloblastic anemia, a blood condition that makes people tired and weak.
How are irregular periods treated?
Vitamin B12 deficiency is not typically a direct cause of delayed periods, though severe deficiency can potentially affect menstrual cycles as part of broader health impacts.
Vitamins B6 and B1
Reduces pain, cramps and mood disturbance. Do not exceed 50 mg of vitamin B6 daily or 100 mg vitamin B1. Best if combined as a multi-B vitamin, not as single nutrients.
Cutaneous manifestations associated with vitamin B12 deficiency are skin hyperpigmentation, vitiligo, angular stomatitis, and hair changes. A diagnosis of vitamin B12 deficiency is often overlooked in its early stages because these signs are not specific to vitamin B12 deficiency alone.
You should be able to get all the vitamin B12 you need by eating a varied and balanced diet. If you take vitamin B12 supplements, do not take too much as this could be harmful. Taking 2mg or less a day of vitamin B12 in supplements is unlikely to cause any harm.
This constant feeling of hunger may be due to nutrient imbalances, particularly a lack of vitamins B1 and B3, which are essential for energy metabolism. In addition, a deficiency in essential nutrients such as protein, fiber, and certain minerals can also contribute to an increased appetite.
Here are some ways to naturally balance your hormones.
Listen to your body — it's trying to tell you something
Chemical messengers called neurotransmitters, which are in charge of sending impulses between nerve cells, are the main hormones linked to depression and sadness. In specifically, dopamine, norepinephrine, and serotonin are three neurotransmitters that are vital.
A stress period looks like menstrual changes due to hormonal disruption, featuring spotting, early/late/missed periods, heavier/lighter flow, longer duration, bigger clots, more cramping, worse PMS, and potential loss of libido, alongside physical signs like headaches, fatigue, muscle tension (neck/back pain), jaw clenching, and digestive issues, all stemming from elevated cortisol and disrupted reproductive hormones.
Causes of irregular periods
puberty - your periods might be irregular for the first year or 2. the start of the menopause (usually between ages 45 and 55) pregnancy - take a pregnancy test to rule this out. some types of hormonal contraception - such as the pill or intrauterine system (IUS)
Thyroid Disease: A deficiency of Thyroid hormone, also known as hypothyroidism medically is very common ailment among women leading to delayed periods. Since thyroid hormone is the major metabolism regulating hormone, its deficiency can disturb a whole cascade of hormone functioning leading to Menstrual issues.
Women start perimenopause at different ages. You may notice signs, such as your periods becoming irregular, sometime in your 40s. But some women notice changes as early as their 30s or as late as their 50s.
Here are 9 signs your hormones may be out of whack: