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8 Magnesium Benefits for Women

By Ethan Boldt

March 17, 2026

Magnesium is an essential mineral involved in hundreds of biochemical reactions in the body, including supporting healthy heartbeat rhythms and healthy blood pressure, balancing stomach acid, plus promoting proper function of nerves, muscles and tissue. It plays several important roles in women’s health, including for bone health and hormone balance.

Meanwhile, magnesium is one of the most common minerals that women come up short on. It's especially common among pregnant women (up to 80 percent according to one study) and women with hormone issues (up to 55 percent). Otherwise, up to 74 percent of women of fertile age may be short in magnesium.

Learn why so many women are short on magnesium, what benefits this mineral yields to women, then how to get enough magnesium through certain foods and supplementation.

Why do women often have a magnesium shortfall?

With the trend of modern diets alongside lifestyle factors and increased physiological demands, it can be challenging for women to reach daily needs. Here’s specifically why:

• Low intake of magnesium-rich foods: Magnesium is abundant in foods like leafy greens, nuts, seeds, legumes and whole grains. However, these whole foods don’t make it into many diets, which tend to be more magnesium-deficient processed foods.

• Soil depletion: Plants absorb minerals such as magnesium directly from the soil through their roots, but modern soil often contains less essential minerals like magnesium.

• Food processing: Often the magnesium parts of plants are removed in processing, such as turning whole grains into white flour.

• Increased nutrient needs: Certain stages of life may increase magnesium requirements for women, but women don’t always increase their magnesium intake during those phases. For example, hormonal fluctuations during the menstrual cycle, pregnancy and menopause. Physical activity and stress may also increase the body’s demand for this mineral.

• Stress: Frequent stress may contribute to a magnesium shortfall because the body uses magnesium in the regulation of the stress response.

• Lifestyle factors: On top of stress, factors like high caffeine intake, alcohol consumption and poor sleep patterns may influence magnesium levels.

• Digestive and absorption issues: Some health concerns and medications can interfere with magnesium absorption or increase magnesium losses through urine.

• Aging: Many older people are prone to experiencing reduced magnesium intestinal absorption, reduced magnesium bone stores and excess urinary loss.

On top of this, some women (and men) may mistakenly believe that their daily multivitamin (if they take one) cover their magnesium requirement. However, most multivitamins provide only a partial amount of magnesium (around 10–20 percent of the RDA).

Benefits of magnesium for women

Magnesium is very important for women’s health. In particular, here what it does in the body for women:

1. Supports hormone balance

Magnesium helps regulate hormones involved in mood, stress and the menstrual cycle. It may help support more balanced levels of estrogen and progesterone and can contribute to overall hormonal health throughout different life stages.

2. Helps reduce normal menstrual cycle symptoms

Some research suggests magnesium may help reduce symptoms associated with the normal menstrual cycle, such as mood swings, bloating, fatigue and cramps. Magnesium’s role in muscle relaxation and neurotransmitter regulation may help support comfort during the menstrual cycle.

A study published in the Journal of Women’s Health showed that 200 milligrams of magnesium daily helped reduce the severity of several menstrual-related symptoms.

3. Promotes bone health

Magnesium is important for maintaining strong bones, as it helps regulate calcium and vitamin D metabolism. Because women are at higher risk of normal bone density loss as they age, adequate magnesium intake may help support skeletal health.

4. Supports stress and mood balance

Magnesium plays a role in regulating the nervous system and the body’s stress response. It may help support relaxation and healthy cortisol levels, which can benefit mood and overall emotional well-being.

Note that stress can cause your body to use more magnesium than what is typical, underscoring the need to get adequate amounts in the diet.

5. Supports energy production and physical performance

Magnesium is required for the production of ATP, the body’s primary energy molecule. Adequate levels help support energy metabolism and may help reduce feelings of fatigue.

Because magnesium supports muscle function and energy production, it may play a role in exercise performance. In one study published in the American Journal of Clinical Nutrition, 124 older women took magnesium oxide daily for 12 weeks, and those who supplemented showed improvements in physical performance compared to the control group.

6. Helps maintain healthy sleep

Magnesium supports the production of neurotransmitters that promote relaxation and sleep. Many people find that adequate magnesium intake helps support better sleep quality and nighttime relaxation.

7. Supports heart and muscle function

Magnesium helps regulate muscle contraction, including the heart muscle, and supports healthy blood pressure and circulation.

8. It may promote healthy blood sugar management

Magnesium helps regulate how the body processes sugar by supporting the function of insulin, the hormone responsible for controlling blood sugar levels. When magnesium levels are adequate, insulin can work more efficiently, helping the body maintain healthier blood glucose balance.

How much magnesium women need

According to NIH’s Office of Dietary Supplements, the RDA for magnesium is 310–320 mg for nonpregnant women and 350–360 mg for pregnant women.

The best magnesium-rich foods include leafy green veggies, cruciferous veggies, sea vegetables/algae, beans, nuts and seeds. Specifically, top sources include wheat bran, amaranth, cooked spinach, sunflower seeds and black beans.

Magnesium supplementation

Only low levels of magnesium are typically included in multivitamins. So if you’re looking to hit your RDA for magnesium, consider a daily magnesium supplement.

When is it recommended to take a magnesium supplement? Take it before bed to aid relaxation and sleep, or in the morning to help with energy metabolism.