Best fertility supplements UK 2026 | dose comparison, not stars

If you are shopping for fertility supplements in the UK in 2026, start with what the NHS actually asks for. Then read milligrams on anything extra you add. This is a nutrient guide, not a star rating.

If you could become pregnant, take 400 µg folic acid daily from before pregnancy through the first 12 weeks, plus vitamin D (10 µg / 400 IU). That is the NHS pregnancy vitamins line. Everything else here is optional nutrition in the preconception window.

How to read a fertility label

• Doses, not slogans. A token CoQ10 line and a 200–300 mg CoQ10 line are not the same job.
• NAC is not L-cysteine, and it is not N-acetyl L-carnitine. Those get mixed up in round-ups. Read the line item.
• Inositol in milligrams is not a PCOS gram-dose protocol (often discussed around 4 g myo-inositol). If a clinician wants inositol, that is usually a separate bottle.
• Omega-3 is usually separate. Many all-in-ones still expect you to add EPA/DHA.
• Minerals with a job. Zinc contributes to normal fertility and reproduction. Selenium contributes to normal spermatogenesis on a men’s formula, and to normal thyroid function on many women’s formulas.

Related: how much CoQ10 for fertility, NAC milligrams, methylfolate vs folic acid.

What a women’s preconception formula is for

Beyond folic acid and vitamin D, specialist formulas often put CoQ10, NAC, a named folate form, zinc, selenium, iodine and choline in one daily serving so you are not running four checkouts. That is adherence. It is not an IVF protocol.

What a men’s preconception formula is for

There is no NHS male conception-vitamin programme. The useful conversation is the ~90-day sperm cycle, lifestyle, then zinc, selenium, and — if using CoQ10 or ALCAR at all — milligrams that are not a token sprinkle. See the male fertility and sperm health guide.

How Her Fertility and Him Fertility fit

Her Fertility is our daily preconception formula for women. The live product copy includes CoQ10 at 300 mg, NAC at 400 mg, folate as 5-MTHF at 400 µg, zinc at 20 mg and selenium at 200 µg, plus named KSM-66 ashwagandha. Folate contributes to maternal tissue growth during pregnancy. Stop it at a positive test and switch to a pregnancy vitamin.

Him Fertility is the matching formula for men: zinc 15 mg, selenium 200 µg, CoQ10 300 mg, acetyl L-carnitine 250 mg, and KSM-66 ashwagandha. The Him & Her Fertility bundle is both tubs with one start date.