The Hidden Nutrient Deficiencies That May Be Affecting Your Fertility
- Michelle Lewis, MS, RDN, IFNCP, CLC

- Oct 22, 2025
- 2 min read
Updated: Nov 6, 2025
Trying to conceive can be an emotional and complex journey. While many focus on ovulation timing and hormone levels, fewer people consider whether nutrient deficiencies may be standing in the way. As a functional dietitian, I often work with individuals and couples who eat well but are missing key nutrients that affect fertility at the cellular level.
While nutrient deficiencies are often overlooked, they aren’t the only hidden barriers to fertility. Hormone imbalances, gut health issues, inflammation, and chronic stress can also interfere with ovulation, implantation, and early pregnancy. These systems are deeply connected — and disruptions in one area can create a ripple effect throughout the body’s reproductive function.
Why Functional Testing Matters for Fertility
Routine lab work may not identify subtle but clinically significant deficiencies. Functional testing can reveal what your body is actually absorbing and using — especially with key vitamins and minerals needed for ovulation, implantation, and hormone regulation.
Top 5 Nutrients Often Missing in Fertility Clients
Vitamin D – Crucial for hormone balance and implantation
Iron – Low levels may impair ovulation and uterine health
Zinc – Supports egg development and DNA integrity
B12 & Folate – Needed for methylation and healthy embryo development
Magnesium – Regulates cortisol and supports reproductive hormones
Even mild deficiencies in these nutrients can affect egg quality, cycle regularity, and implantation success. Left unaddressed, they may also impact early pregnancy outcomes.
How I Help Clients Find and Fix These Deficiencies
Through my Fertility Foundations Program, I utilize advanced functional testing and personalized nutrition to identify and address hidden imbalances. We create a supplement and food plan that restores what's missing and supports your fertility goals — whether naturally or alongside fertility treatments.
Rather than focusing on symptoms or guesswork, we take a root-cause approach that considers your body's interconnected systems. Every step is guided by data, compassion, and a deep understanding of how nutrition influences reproductive health.
Ready to Take the Next Step?
Learn more about my Fertility Foundations Program or visit the Next Step page to begin your personalized nutrition journey. I’m here to help you uncover the root cause — and restore confidence in your body’s ability to conceive.
When we uncover what’s missing, we create space for new life to begin…

References
Lerchbaum E, Obermayer-Pietsch B. Vitamin D and fertility: a systematic review. Eur J Endocrinol. 2012;166(5):765–778. https://doi.org/10.1530/EJE-11-0984
Wakwoya EB, Tariku M, Tareke KG, et al. Determinants of iron deficiency anemia among women of reproductive age in Ethiopia: A community-based cross-sectional study. BMC Women’s Health. 2023;23:253. https://doi.org/10.1186/s12905-023-02291-6
Szewczyk-Golec K, et al. Micronutrients and female fertility: a review. Nutrients. 2023;16(23):4068. https://www.mdpi.com/2072-6643/16/23/4068
Chavarro JE, Rich-Edwards JW, Rosner BA, Willett WC. Use of multivitamins, intake of B vitamins, and risk of ovulatory infertility. Fertil Steril. 2008;89(3):668–676. https://doi.org/10.1016/j.fertnstert.2007.03.089
Barbagallo M, Veronese N, Dominguez LJ. Magnesium in aging, health and disease. Nutrients. 2021;13(2):463. https://doi.org/10.3390/nu13020463
Gaskins AJ, Chavarro JE. Diet and fertility: a review. Am J Obstet Gynecol. 2018;218(4):379–389. https://doi.org/10.1016/j.ajog.2017.08.010
