Women's Essentials 30-50

Vitamin D supports bone density, immune function, and reproductive hormone signaling. Bone density begins its measurable decline in the 30s-40s — vitamin D status is foundational. Pair with K2 for cardiovascular safety. Fat-soluble; take with a fat-containing meal.^{[1, 2, 3]}

Magnesium supports sleep, PMS symptoms, blood pressure, anxiety, and over 300 enzymatic reactions. Most adult women under-consume magnesium. The glycinate form is gentle and pairs with sleep support.^{[4, 5, 6]}

Omega-3 supports cardiovascular health, mood, joint comfort, and inflammatory tone. Cardiovascular disease becomes the leading cause of death in women starting in this decade, making omega-3 a high-leverage daily nutrient.^{[7, 8]}

Menstruating women without supplementation commonly run low on ferritin. Symptoms include fatigue, exercise intolerance, hair shedding, restless legs, brittle nails. Test before supplementing — over-supplementation is harmful. Iron bisglycinate is gentler than ferrous sulfate.^{[9, 10]}

B vitamins support energy metabolism, mood, and the methylation cycle. Methylfolate (not folic acid) is preferable — covers preconception folate even if not actively trying, and bypasses MTHFR enzyme variants in the 30-40% of women with reduced folic acid conversion.^{[11, 12]}