Women's Multivitamin Essentials by Fairhaven Health

This is a one-capsule daily multivitamin for women who want broad coverage of vitamins and trace minerals without iron. It suits women whose Ferritin is already adequate, women past menopause, and anyone who prefers to dose iron, calcium and magnesium separately based on labs, since the formula lists none of the three. If your periods are heavy or your Ferritin runs low, you will need iron alongside it. It is not a prenatal: if you are pregnant or trying to conceive, choose a prenatal formula.

The formula leans on active forms. Folate comes as L-methyltetrahydrofolic acid and vitamin B12 as methylcobalamin, the forms the body uses directly, with vitamin B6 as pyridoxal 5'-phosphate. Vitamin A is supplied entirely as beta carotene, which the body converts as needed. Vitamin D as cholecalciferol is paired with vitamin K2 as menaquinone-7, and the minerals are iodine, zinc, selenium, manganese, chromium and molybdenum. Coenzyme Q10, green tea extract, lutein, zeaxanthin and lycopene are added in small amounts.

Each capsule provides 50 mcg of vitamin D, 90 mcg of vitamin K2, 667 mcg DFE of folate, 500 mcg of vitamin B12, 150 mcg of iodine and 25 mg of zinc, among others. The label directs 1 capsule daily, and the bottle is a one-month supply. The label does not mention food; taking it with a meal that contains some fat helps you absorb vitamins A, D, E and K and lowers the chance of the nausea zinc can cause on an empty stomach.

Vitamin K2 can interfere with warfarin and other vitamin K-blocking anticoagulants, so do not start this without your prescriber's agreement if you take one. The iodine matters if you have a thyroid condition or take thyroid medicine: check with your clinician first. Zinc binds tetracycline and quinolone antibiotics, so take them at least 2 hours apart. Count the vitamin D and zinc toward your daily totals if you also take either separately; zinc taken for months without copper can lower copper levels.

A multivitamin fills gaps; you will not feel it within days. If Vitamin B12 or Vitamin D (25-hydroxy) was low, expect levels to move over 8 to 12 weeks, and retest to confirm. Next to women's formulas that include iron, this one is easier on the stomach but leaves iron to you and your labs. When a level is clearly low, a single-nutrient supplement at a repletion dose corrects it faster than any multivitamin.