Natalist vitamins are formulated with premium, highly bioavailable ingredients for maximum efficacy and potency.

All of our vitamins  are made in an FDA Registered and Inspected Facility, which meets or exceeds FDA 21 CFR 111 guidelines. Certificates of analysis are reported for every batch of manufactured vitamins to ensure final product integrity and quality. Our vitamins are free of artificial and synthetic dyes and all allergens are disclosed on our label. Additionally, our vitamins are manufactured under strict procedures to ensure there is no cross-contamination during manufacturing and storage.‡

Our gummy is naturally flavored and sweetened to create mixed fruity flavors without the use of high-fructose corn syrup.

Unlike other gummies, we do not use gelatin in our formula. Gelatin is extracted from the hides and bones of pigs and cows and is not considered vegetarian. Our premium D3 gummy is made with pectin, a plant-based option.

A NHANES study found 40% of the population to be vitamin D deficient. Vitamin D deficiency is more common during pregnancy, especially among high-risk groups such as vegetarians, women with limited sun exposure, and people with darker skin.

More so, Black women and women with rich darker pigment are even more susceptible to vitamin D deficiency and often require higher doses of vitamin D due to decreased absorption through the skin. This difference is important to note since Black women share a higher burden of preterm birth, low birth weight, and pre-eclampsia—conditions that have all been studied in association with lower vitamin D levels.

The body needs vitamin D to absorb calcium, which supports bone health. Children and adults alike need vitamin D in order to build and keep strong bones.

Research shows that supplementation of vitamin D3 is more effective than D2 at increasing vitamin D levels and is the preferred form to optimize vitamin D status within the general population.

Deficiency in vitamin D is associated with increased autoimmunity as well as an increased susceptibility to infection. Data from vitamin D supplementation studies have shown beneficial effects of extra vitamin D on immune function, in particular in the context of autoimmunity.

There is evidence vitamin D exerts some effects on female reproduction including IVF outcome, PCOS, and endometriosis.

The same systematic review found that for men, vitamin D status might be related to spermatogenesis and semen quality.

Multiple studies have found that vitamin D sufficient women undergoing IVF had higher implantation and pregnancy rates compared with the vitamin D deficient women. One study suggested that “Vitamin D supplementation could provide an easy and cost-effective way of improving pregnancy rates.”

A significant proportion of erectile dysfunction (ED) patients have a vitamin D deficiency. Research shows that vitamin D supplementation may help delay the onset of ED—and may even restore normal sexual function to some men when coupled with positive lifestyle changes.

Most experts agree vitamin D supplements are safe in dosages up to 4,000 IU per day during pregnancy or lactation. When taken with our Prenatal Multi (which contains 800 IU of D3), one gummy a day would give you a total of 1,800 IU of vitamin D3. When taken with Prenatal for her (which contains 2,000 IU of D3), one gummy a day would give you a total of 3,000 IU of vitamin D3.

Because breastfeeding moms share a lot of nutrients with baby while breastfeeding, the CDC suggests it is important to consume an extra 400-500 calories a day of healthy, vitamin-rich foods. Supplementing is a great way to ensure people who breastfeed are receiving all the nutrients needed to support their health and the health of the baby. 

Research shows that prolonged breastfeeding without vitamin D supplementation can cause rickets in infants. Rickets softens the bones and can lead to bowed legs, mobility delays, and soft skulls. 

Taking a vitamin D supplement while breastfeeding helps strengthen teeth and bones and can improve immune function of both baby and mama. In addition to getting vitamin D from breast milk, the American Academy of Pediatrics recommends breastfed infants get 400 IU supplement per day of vitamin D beginning in the first few days of life. They recommend babies continue vitamin D supplementation until the infant is weaned to at least one liter per day of vitamin D–fortified formula. Talk to your doctor about what supplementation makes sense for you and your baby.

Read more about vitamin D and breastfeeding here.

There’s a lot of junk science out there, and products being sold with grand promises, but little or no data to back it up. We stand by our products and only sell fertility supplements with ample clinical evidence supporting the claims. We try to be very clear about who would benefit most from prenatal nutritional supplementation, but it’s also important to discuss your prenatal supplement routine with your physician who can give further guidance.

ACOG. "Vitamin D: Screening and Supplementation During Pregnancy." American College of Obstetricians and Gynecologists. 2017.

Aranow, Cynthia. “Vitamin D and the immune system.” Journal of investigative medicine : the official publication of the American Federation for Clinical Research vol. 59,6 (2011): 881-6. doi:10.2310/JIM.0b013e31821b8755

Farzadi, Laya et al. “Correlation between follicular fluid 25-OH vitamin D and assisted reproductive outcomes.” Iranian journal of reproductive medicine vol. 13,6 (2015): 361-6.

Laird, Eamon et al. “Vitamin D and bone health: potential mechanisms.” Nutrients vol. 2,7 (2010): 693-724. doi:10.3390/nu2070693

Lerchbaum, E., & Obermayer-Pietsch, B. (2012). Vitamin D and fertility: a systematic review. European journal of endocrinology, 166(5), 765–778. https://doi.org/10.1530/EJE-11-0984

Logan, Victoria F et al. “Long-term vitamin D3 supplementation is more effective than vitamin D2 in maintaining serum 25-hydroxyvitamin D status over the winter months.” The British journal of nutrition vol. 109,6 (2013): 1082-8. doi:10.1017/S0007114512002851

Mithal, Ambrish, and Sanjay Kalra. “Vitamin D supplementation in pregnancy.” Indian journal of endocrinology and metabolism vol. 18,5 (2014): 593-6. doi:10.4103/2230-8210.139204

NIH. "Vitamin D." 2020. https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessional/

Ozkan, Sebiha et al. “Replete vitamin D stores predict reproductive success following in vitro fertilization.” Fertility and sterility vol. 94,4 (2010): 1314-1319. doi:10.1016/j.fertnstert.2009.05.019

Paffoni, Alessio et al. “Vitamin D deficiency and infertility: insights from in vitro fertilization cycles.” The Journal of clinical endocrinology and metabolism vol. 99,11 (2014): E2372-6. doi:10.1210/jc.2014-1802

Parva, Naveen R et al. “Prevalence of Vitamin D Deficiency and Associated Risk Factors in the US Population (2011-2012).” Cureus vol. 10,6 e2741. 5 Jun. 2018, doi:10.7759/cureus.2741

Prietl, Barbara et al. “Vitamin D and immune function.” Nutrients vol. 5,7 2502-21. 5 Jul. 2013, doi:10.3390/nu5072502

Qureshi, Shaista A, and Joanne E Wilkinson. “Vitamin D supplementation for women during pregnancy.” American family physician vol. 87,5 (2013): 314.

Tripkovic, Laura et al. “Daily supplementation with 15 μg vitamin D2 compared with vitamin D3 to increase wintertime 25-hydroxyvitamin D status in healthy South Asian and white European women: a 12-wk randomized, placebo-controlled food-fortification trial.” The American journal of clinical nutrition vol. 106,2 (2017): 481-490. doi:10.3945/ajcn.116.138693

WHO. "Guideline: Vitamin D supplementation in pregnant women." Mithal, Ambrish, and Sanjay Kalra. “Vitamin D supplementation in pregnancy.” Geneva, World Health Organization, 2012.

This product is manufactured and processed in a facility which may also process milk, soy, wheat, egg, peanuts, tree nuts, fish, and crustacean shellfish.