Supplements for Women

The phrase "supplements for women" covers two different things. First, nutrients where the recommended intake for women is higher than for men. Second, formulas built around a life stage: the cycle, pregnancy, or the years after 50. Knowing which of the two you are buying makes the choice much simpler.

Iron is the clearest example. UK advice is 14.8 mg a day for women aged 19 to 49, and 8.7 mg from 50 onwards. Monthly blood loss explains the difference. Iron contributes to the normal formation of red blood cells and haemoglobin, and to the reduction of tiredness and fatigue. Above 20 mg a day from supplements, constipation and nausea become common, so we stock iron in gentler forms and modest doses rather than the biggest number on the label.

The form decides how a supplement feels day to day

Same nutrient, different experience:

• Iron bisglycinate: iron bound to an amino acid, usually easier on the stomach than ferrous sulfate.
• Folate as 5-MTHF: the active form of folate, next to standard folic acid.
• Magnesium citrate or bisglycinate: citrate can loosen stools at higher doses, bisglycinate rarely does.
• Vitamin D3 in oil drops: vitamin D dissolves in fat, so one drop with a meal is enough.
• Gummies: easy to take, but usually lower dosed and often with added sugar.

Life stage narrows the shortlist faster than gender does

Between 19 and 49, iron and folate do most of the work. In the UK, everyone is advised to consider 10 micrograms (400 IU) of vitamin D a day from October to March, because sunlight is too weak in those months for the skin to make enough. From 50, iron needs fall while bone maintenance becomes more relevant, which is where calcium and vitamin D come in. That is also why our pages for the menopause transition look different from the rest of this collection.

How we choose what goes in this collection

We look at three things: the form, the dose, and whether a combination makes sense. So we carry iron as bisglycinate as well as classic ferrous forms, vitamin D3 with a clear microgram amount on the front of the pack, and multivitamins where the iron content matches what a woman under 50 actually needs. We only use claims the European food safety authority (EFSA) has approved, and we say plainly when the evidence for an ingredient is thin. We buy directly from the brands, and every product passes our compliance team before it goes live. You can read how we select brands and products.

This collection suits you if you want a targeted choice rather than one tablet that claims to cover everything. If tiredness is your main reason for shopping, a GP blood test tells you more than any product: with a ferritin result you can dose iron on purpose instead of guessing. Give any supplement two to three weeks of consistent use before you judge it, and longer for iron, because stores refill slowly. Browsing by women's health goals helps if you would rather start from a goal than from a nutrient.