As women move through their 40s, the body begins to experience significant hormonal shifts—particularly a gradual decline in estrogen. These changes can affect everything from energy levels and sleep quality to bone density and metabolism. That’s why many doctors and nutrition experts recommend paying closer attention to nutrient intake during this stage of life.
While a balanced diet is always the foundation of good health, certain supplements may help fill common nutritional gaps and support the body through midlife changes. According to medical experts, a few key nutrients stand out for their ability to promote strong bones, balanced hormones, and steady energy levels after 40. Below are three supplements doctors say women should consider incorporating into their routine.
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1. Calcium and Vitamin D
When it comes to protecting bone health, experts often point to calcium and vitamin D as a critical combination. As hormone levels shift with age, women can become more vulnerable to bone loss and fractures.
According to Kaitlyn Comeau, Registered Dietician and In-House Dietitian at KAL Vitamins, this pairing is a true “power duo” for women in midlife. “As estrogen drops, it leads to faster bone loss, so these nutrients are essential to maintain bone density and prevent fractures,” she explains. “Vitamin D is also key for immune health and mood.”
Calcium helps maintain strong bones and teeth, while vitamin D improves calcium absorption and supports the immune system. In addition to supplements, women can also boost their intake through foods like dairy products, leafy greens, fortified cereals, and fatty fish.
2. Magnesium
Magnesium is another nutrient experts frequently recommend—yet it’s also one many people don’t get enough of.
Comeau, highlights magnesium as an essential mineral for overall health. “This mineral is important for over 300 different processes and many of us are deficient in magnesium,” she says.
Magnesium plays a crucial role in supporting thyroid hormones, balancing estrogen, relaxing the nervous system, and improving sleep quality. These benefits can be especially valuable during perimenopause and menopause, when sleep disruptions and stress often become more common.
Dr. Murray also emphasizes its wide-ranging impact on daily wellness. “Magnesium supports over 300 essential processes in the body, including energy, sleep, muscle function, and stress regulation,” he notes. “Most people are deficient, making it a daily essential.”
3. Black Seed Oil
Another supplement gaining attention for its potential benefits is black seed oil, which is derived from the Nigella sativa plant. Traditionally used in herbal medicine, it’s now being studied for its anti-inflammatory and immune-supporting properties.
Dr. Michael Murray, ND, a naturopathic doctor, describes black seed oil as “an ancient remedy backed by modern science.” According to him, it can support several areas of health at once. “[It] supports inflammation, immunity, and digestion… it’s potent,” he says.
Because inflammation tends to increase with age and hormonal shifts, supplements with anti-inflammatory properties may offer additional support for overall wellness.
The Bottom Line
After 40, the body’s nutritional needs often change as hormone levels shift and bone density gradually declines. While a healthy diet should always come first, supplements like calcium with vitamin D, magnesium, and black seed oil may help support bone strength, hormone balance, and overall energy levels.
Still, experts recommend consulting a healthcare professional before starting any new supplement regimen to ensure it’s the right fit for your individual health needs.
