What I look for in a women’s health supplement — and why most don’t make the cut

If you’ve ever stood in a health food shop — or spent forty-five minutes on a supplement website at midnight — wondering what any of it actually means, I understand completely.

I spent years doing exactly that. Buying individual bottles, researching ingredients, second-guessing dosages, throwing away products that weren’t working and starting again. It was expensive, time-consuming, and honestly quite demoralising.

What I eventually learned — through a combination of research and my own nutrition training — is that three things matter more than the headline ingredient list: whether the nutrients have sound evidence behind them, whether they’re in a form your body can actually absorb, and whether the dosage is meaningful.

This post is my attempt to make that knowledge easier to access than it was for me.

The problem with most women’s supplements

The women’s supplement market is enormous, and the marketing is often miles ahead of the formulation. There are three common problems I see repeatedly:

•      Missing key nutrients. Several vitamins and minerals with well-established, approved health claims relevant to women’s health are simply absent from many mainstream products.

•      Sub-therapeutic doses. An ingredient might appear on the label, but at a dose too small to have any meaningful effect. Always check the nutritional information panel, not just the front of the pack.

•      Poor bioavailability. The form of a nutrient matters enormously. Your body cannot use all forms equally well — and some cheaper forms pass through largely unabsorbed.

-> Click for list of Nutrients and their benefits <-

Nutrient	What are their benefits?
Zinc	Contributes to normal fertility and reproduction, and to the maintenance of normal testosterone levels in the blood.
Folate (5-MTHF)	Contributes to maternal tissue growth during pregnancy. Research suggests the active 5-MTHF form may be better utilised by women with certain gene variants than standard folic acid.
Vitamin D3	Contributes to the normal function of the immune system and to the maintenance of normal muscle function. Research suggests vitamin D status may play a role in women's reproductive health.
Magnesium	Contributes to normal energy-yielding metabolism, the normal functioning of the nervous system, and the reduction of tiredness and fatigue.
Vitamin B6 (P5P)	Contributes to the regulation of hormonal activity.
Vitamin B12 (Methylcobalamin)	Contributes to normal energy-yielding metabolism and the reduction of tiredness and fatigue. Methylcobalamin is the active, most bioavailable form.
Selenium	Contributes to normal thyroid function and to the protection of cells from oxidative stress.
Vitamin C	Contributes to the protection of cells from oxidative stress and to normal energy-yielding metabolism.
Iron	Contributes to the reduction of tiredness and fatigue and to normal formation of red blood cells and haemoglobin.
CoQ10	Contributes to the protection of cells from oxidative stress. Research has explored its role in cellular energy production and egg cell health.
Myo-Inositol	A naturally occurring compound found in many foods. Research has explored its potential role in supporting women's health and hormonal balance.
N-Acetyl Cysteine	A precursor to glutathione, one of the body's natural antioxidant compounds. Research has explored its potential role in women's health.
Ashwagandha	Traditionally used as an adaptogen to help the body respond to stress. Used in herbal traditions for centuries.

Why form matters — a practical guide

One of the most overlooked aspects of supplement quality is bioavailability — how well a nutrient can be absorbed and used by the body. The form of a mineral or vitamin can make a significant difference:

•      Folate: 5-MTHF (methylfolate) is the active form. Standard folic acid must be converted by the body before it can be used. Research suggests some women have reduced ability to make this conversion.

•      Magnesium: Magnesium citrate and glycinate are generally considered better absorbed than magnesium oxide, which research suggests has low bioavailability.

•      Zinc: Zinc picolinate and zinc bisglycinate are well-absorbed forms. Zinc oxide is less bioavailable.

•      Vitamin B12: Methylcobalamin is the active form. Cyanocobalamin requires conversion and may be less effective for some individuals.

•      Vitamin D: D3 (cholecalciferol) is considered more effective at raising blood levels than D2 (ergocalciferol). Lichen-derived D3 is a plant-based source.

When evaluating any supplement, it’s worth checking the ingredient list for the specific forms used — not just the headline nutrient names on the front of the packaging.

About LK Mama Fertility Support

Fertility Support

£26.00

Buy Now

I created LK Mama Fertility Support because I spent years doing this research for myself, and I wanted to make it considerably easier for other women.

The formulation contains 29 active ingredients — including all of the nutrients in the table above — in their most bioavailable forms where applicable. It also includes a full B-vitamin complex, Maca, Cordyceps, Dong Quai, L-Arginine, Kelp, Choline, Chromium, and Biotin, all of which have been used traditionally to support women’s health or have relevant nutritional functions.

This supplement is designed to complement a balanced diet and healthy lifestyle — not to replace either. If you are pregnant, breastfeeding, taking medication, or under medical supervision, please consult a healthcare professional before use. Do not use once pregnancy is confirmed.