The Hidden Health Markers Linked to Fertility

Fertility is often spoken about in very narrow terms, but in reality it sits within wider whole-body health. Hormones matter, of course, but so do nutrient status, thyroid function and general wellbeing.

The NHS notes that fertility assessment often includes blood tests for hormones such as progesterone and gonadotrophins, depending on cycle regularity and the questions being explored. NICE also recognises that broader health issues can reduce or limit fertility.

Nutritional status may matter too. The British Dietetic Association advises folic acid supplementation when trying to conceive and during early pregnancy, and notes that vitamin D may be important in fertility, with receptors present in the ovaries, placenta, endometrium, testicles and sperm.

Biomarkers that may help provide answers

Depending on the purpose of testing, useful markers may include:

• Selected reproductive hormones
• Thyroid markers
• Vitamin D
• Folate and B12
• Iron status

The Cocoon perspective

Fertility conversations can feel emotionally loaded very quickly. Our view is that good information should feel supportive, not intimidating. Testing cannot answer every question on its own, but it can provide a clearer starting point.

Cocoon's Fertility testing is designed to help individuals and couples better understand some of the health markers that can form part of the wider fertility picture.