Egg Quality
What egg quality means
Egg quality refers to the chromosomal and cellular health of an egg cell. A high-quality egg has the right number of chromosomes, healthy mitochondria, and the cellular machinery needed to fertilise, divide, and develop into a healthy embryo.
Egg quality matters more than egg quantity for many women — particularly those over 35 or undergoing IVF.
What affects egg quality
- Mitochondrial energy — egg cells contain more mitochondria than any other cell in the body. They need huge amounts of cellular energy to mature and to support fertilisation.
- Oxidative stress — reactive oxygen species damage cells. Antioxidants help neutralise this.
- DNA integrity — supported by folate, B12, and B6.
- Hormonal environment — well-regulated reproductive hormones support consistent ovulation.
The 90-day window
The egg you ovulate this month started developing 90 days ago. Every nutrient your body had during that window helped shape its final quality. This is why starting preconception nutrition at least three months before active TTC matters.
CoQ10 specifically
CoQ10 (Coenzyme Q10) is involved in cellular energy production within mitochondria. Research into CoQ10's role in egg quality during preconception and ART continues to grow. While no GB-Authorised fertility claim exists for CoQ10 specifically, it's one of the most studied nutrients in fertility nutrition. Fertility Advance contains 300mg.