7 Superfoods Backed by Science for Egg Health

Egg health refers to the quality and maturity of your eggs - which plays a major role in fertility. While egg quantity is fixed, egg quality can be supported through lifestyle habits, nutrient intake and daily rituals.

Below are 7 superfoods that research suggests may help protect, nourish, and support your eggs gently & naturally.

1. Beetroot

Beetroot is rich in dietary nitrates, which the body converts into nitric oxide - a compound that supports healthy blood vessel function and circulation. Better blood flow is relevant for reproductive tissues (including the ovaries and endometrium), where nitric oxide plays regulatory roles. 1,2

Rich in: nitrates, antioxidants, folate

2. Blueberries

These antioxidant-rich berries may help protect cells from oxidative stress - which is closely linked with oocyte (egg) ageing and declining egg quality over time 3. Blueberries are particularly rich in anthocyanins, and human studies have shown blueberry intake can reduce oxidative stress markers in certain populations. 4,5

Rich in: antioxidants, Vitamin C

3. Flaxseeds

Flax contains lignans (phytoestrogens) and omega-3 ALA. Some human studies suggest flax intake may influence sex hormone metabolism and circulating hormone profiles, although results across trials are mixed overall.6–8 As part of a fibre-rich, wholefood diet, flax can be a helpful foundational add for hormone and cycle support.6–8

Rich in: lignans, fibre, omega-3 ALA

4. Maca Root

Traditionally used in Peruvian medicine, maca has been studied primarily in the context of sexual function and male fertility parameters, with reviews noting potential fertility-related effects (though the quality and consistency of evidence varies by outcome).9,10

Rich in: bioactives, plant sterols

5. Acai

Açaí contains polyphenols (including anthocyanins) and has been widely described in literature for antioxidant and anti-inflammatory activity.11,12 Given oxidative stress is relevant to reproductive ageing and cellular function, antioxidant-rich wholefoods like açaí can be a smart part of a supportive preconception base.3,11

Rich in: anthocyanins, polyphenols

6. Spirulina

Spirulina is a nutrient-dense microalgae rich in antioxidant compounds (notably phycocyanin). In research, spirulina has shown antioxidant and anti-inflammatory effects, and several animal studies suggest it may help protect ovarian tissue under oxidative stress and support healthier follicle outcomes in certain models. 13,14

Rich in: phycocyanin, carotenoids, iron, protein

7. Avocado

Avocados provide healthy fats that support hormone production and help maintain a balanced menstrual cycle. 15,16

Rich in: vitamin E, folate, monounsaturated fats


How to Add These to Your Routine

You don’t need to eat all of these every day - but adding 2–3 of them into a daily smoothie, overnight oats recipe, or other nourishing ritual is a great start.

At Harper, we’ve included several of these -  like beetroot, flax, blueberry, açaí and other antioxidant-rich ingredients - in our Fertile Femme blend.

Because egg health starts with consistent, calming support.

🔗 Learn more about Fertile Femme

 

References 

  1. Athanasiou D, et al. The Molecular Landscape of Nitric Oxide in Ovarian Function… (2025). PubMed Central (PMC).

  2. Domínguez R, et al. Effects of Beetroot Juice Supplementation on… (2017). PubMed Central (PMC).

  3. Wang L, et al. Oxidative stress in oocyte aging and female reproduction. (2021). PubMed.

  4. Kalt W, et al. Recent Research on the Health Benefits of Blueberries and Their Anthocyanins. (2019). PubMed Central (PMC).

  5. Nair AR, et al. Blueberry supplementation attenuates oxidative stress… (2017). PubMed.

  6. Hutchins AM, et al. Flaxseed consumption influences endogenous hormone concentrations… (2001). PubMed.

  7. Chang VC, et al. Effect of Dietary Flaxseed Intake on Circulating… (2019). Nutrition and Cancer (Taylor & Francis).

  8. Musazadeh V, et al. The effect of flaxseed supplementation on sex hormone profile… (2023). PubMed Central (PMC).

  9. del Carpio NU, et al. A comprehensive review of the effects of maca… (2024). PubMed Central (PMC).

  10. Lee MS, et al. The use of maca (Lepidium meyenii) to improve semen… (2016). ScienceDirect (review).

  11. Laurindo LF, et al. Açaí (Euterpe oleracea Mart.) in Health and Disease: A Critical Review. (2023). PubMed Central (PMC).

  12. Garzón GA, et al. Polyphenolic composition and antioxidant activity of açaí… (2017). Food Chemistry (ScienceDirect).

  13. Embaby EM, et al. Co-administration of Spirulina and L-carnitine preserves… (2025). PubMed Central (PMC). 

  14. Abdel-Aziem SH, et al. Evaluation of the alleviative role of Chlorella vulgaris and Spirulina platensis… ovarian dysfunction (2018). PubMed Central (PMC). 

  15. Comerford KB, et al. The Role of Avocados in Maternal Diets. (2016). PubMed Central (PMC).

  16. Chavarro JE, et al. Dietary fatty acid intakes and the risk of ovulatory infertility. (2007). PubMed.