Why Blood Sugar Balance Matters in IVF

When we think about preparing for IVF, diet and lifestyle often come up, but one area that’s sometimes overlooked is blood sugar balance. Keeping blood sugar steady isn’t just important for long-term health, it can directly affect fertility and IVF outcomes.

Egg quality and hormone balance

Every time we eat, our body responds with insulin to help move glucose into our cells. If blood sugar rises and falls sharply, insulin can spike too. High insulin levels disturb the delicate balance of reproductive hormones, which can affect how eggs mature and respond during IVF stimulation.

The uterine environment

Blood sugar swings also create inflammation, and this can influence how receptive the uterine lining is. A stable environment helps with healthy blood flow and hormone signalling: two essentials for implantation.

Embryo development and pregnancy

Embryos in their earliest stages are very sensitive. Research shows that unstable blood sugar and insulin resistance can reduce embryo quality and even increase the risk of early miscarriage. On the other hand, keeping blood sugar balanced supports embryo growth and helps sustain pregnancy.

Simple ways to support balance

Pair protein and healthy fats with carbohydrates to slow down sugar release. Avoid eating naked carbs. Favour whole foods over refined carbs and sugary snacks. Eat at regular intervals instead of skipping meals. Gentle exercise like walking or yoga also improves insulin sensitivity.

The bottom line: balanced blood sugar supports steady hormones, healthy eggs, a receptive uterine lining, and developing embryos. For anyone preparing for IVF, it’s one of the simplest but most powerful foundations to put in place.

References

Li, Y., Li, R., Qiao, J., Zhang, Q. & Xu, Y. (2013). Effect of insulin resistance on the outcome of in vitro maturation treatment in women with polycystic ovary syndrome. Reproductive Biology and Endocrinology, 11(1), 31. doi:10.1186/1477-7827-11-31. Available at: PubMed

Huang, W., Chen, Q., Fan, Y., Ma, Y., Zhang, Y., Fang, T., & Wang, Y. (2021). Association between insulin resistance and embryo quality in lean, non-PCOS women undergoing in vitro fertilization. Frontiers in Endocrinology, 12, 741981. doi:10.3389/fendo.2021.741981. Available at: PMC