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WeNatal Heavy Metal Testing
& Transparency
WeNatal Heavy Metal Testing
& Transparency
Our Commitment to Safety & Purity

At WeNatal, we believe in full transparency when it comes to the supplements you take during one of the most important times in your life. That’s why we rigorously test every batch of WeNatal products to ensure they meet the strictest safety standards, including California Proposition 65 (Prop 65), United States Pharmacopeia (USP), and global health regulations.

Why does this matter?

Heavy metals like lead, arsenic, cadmium, and mercury can be present in trace amounts in soil and water, making their way into food and supplements. While unavoidable in nature, it’s our job to minimize exposure and ensure that WeNatal products remain well below regulatory safety limits.

Third-Party Heavy Metal Testing

Every batch of WeNatal for Her, WeNatal for Him, Omega DHA+, Egg Quality + and Magnesium undergoes rigorous third-party testing to ensure purity, potency, and safety.



  • Lead (Pb)
  • Arsenic (As)

  • Cadmium (Cd)
  • Mercury (Hg)


These tests are conducted by independent, accredited laboratories following cGMP (Current Good Manufacturing Practices) and FDA guidelines for dietary supplements.

Ingredient Sourcing & Quality Control

We go above and beyond to ensure clean, high-quality ingredients in every pouch of WeNatal.

Sourced from trusted suppliers who meet stringent quality standards.

Purified & tested at multiple stages of production.

No fillers, artificial dyes, or unnecessary additives.

Heavy Metal Testing Standards:

What Actually Applies to Prenatal Vitamins?

USP vs. Baby Food Safety Act Limits:

An Apples-to-Oranges Comparison

We understand concerns about heavy metals in prenatal supplements, especially for those trying to conceive or pregnant. Some have applied baby food standards to prenatal vitamins, but this is misleading—prenatal vitamins follow USP limits for adult dietary supplements, not baby food regulations. The Baby Food Safety Act of 2021 sets limits for toxic elements in food for children up to 36 months old, not prenatal supplements (see H.R. 2229).

While some suggest dietary changes alone can address nutrient needs, we believe prenatal vitamins are essential for maternal and fetal health. We respect efforts to raise awareness about heavy metal exposure but emphasize that baby food standards should not be misapplied to prenatal supplements.

  • This blogger says “we have not yet found a single prenatal vitamin product that has tested non-detect for toxicants, so we do not yet have a prenatal vitamin we would recommend.” and that is a huge red flag. 
  • Prenatal vitamins are widely recommended by major health organizations, including the American College of Obstetricians and Gynecologists (ACOG), the Centers for Disease Control and Prevention (CDC), and the World Health Organization (WHO), as an essential part of a healthy pregnancy.

  • They help fill nutritional gaps to support fetal development, prevent neural tube defects, support oxygen transport and the cognitive function of the baby. 
  • Pregnant women have natural protective mechanisms, such as the placental barrier and maternal detoxification, which help limit the transfer of heavy metals to the baby.

The United States Pharmacopeia (USP) limits for heavy metals in dietary supplements are:

Heavy Metal  USP Daily Limit (µg/day)  WeNatal 3rd party Test Results (µg/day)
Arsenic (inorganic) < 15 µg/day 0.072 µg/serving
Cadmium < 5 µg/day 0.048 µg/serving
Lead < 10 µg/day 0.269 µg/serving
Methyl Mercury < 2 µg/day None detected
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Key Takeaway: WeNatal’s results are not only compliant but far below these strict USP limits.

WeNatal is well below the Strictest U.S. Standard: California Prop 65

California’s Proposition 65 has some of the most stringent heavy metal regulations in the world—much stricter than USP, WHO, and FDA standards.

Heavy Metal  California Prop 65 Limit (µg/day) WeNatal 3rd party Test Results (µg/day)
Arsenic (inorganic) < 10 µg/day 0.072 µg/serving
Cadmium < 4.1 µg/day 0.048 µg/serving
Lead < 0.5 µg/day 0.269 µg/serving
Methyl Mercury < 0.3 µg/day None detected
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 Key Takeaway: We test every batch to ensure we remain well below Prop 65 standards, providing an extra layer of safety beyond national regulations.

Heavy Metal Exposure from Food vs. Supplements

An influencer who advocates for no lead has stated:

“In many cases, 'complete' prenatal vitamins are not actually required if it is possible to instead implement dietary changes that address any documented nutritional deficiencies you may have.”

While we always support a whole-food-based approach to nutrition, this statement ignores an important fact: Heavy metals are naturally occurring in food, and food is not routinely batch-tested for heavy metals before consumption.


This does not mean women should avoid food—just as it does not mean they should avoid a high-quality, third-party-tested prenatal like WeNatal.

The Reality of Heavy Metals in Food

Because heavy metals exist in soil and water, even organic foods absorb them naturally.
Unlike supplements, food is not subject to routine heavy metal testing before consumption.

Food Source Lead (ppb) Cadmium (ppb) Arsenic (ppb) Mercury (ppb)
Spinach (organic) 30-50 30-50 30-50 <1
Brown Rice 120-150 120-150 120-150 <1
Dark Chocolate 100-200 100-200 100-200 <1
Fish (Tuna, Swordfish) <10 <10 <10 500-1,000
WeNatal Prenatal <0.5 <0.5 <0.5 None detected

We agree that a nutrient-dense diet is always the foundation of good health. But prenatal supplements exist because many women struggle to consistently get all essential nutrients from food alone. 



Just as it would be irresponsible to tell women to avoid eating nutrient dense food due to the presence of naturally occurring heavy metals, it’s also irresponsible to dismiss the benefits of a third-party-tested prenatal supplement—especially when testing standards designed for baby food are being misapplied to supplements.

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 Key Takeaway:  If we applied the same standards to food as we do to supplements, many nutrient-rich foods—including spinach, rice, and seafood—would be flagged for heavy metal content. But avoiding these foods entirely would be impractical and unnecessary—just like avoiding a clean, third-party-tested prenatal. The benefits outweigh any potential risks.

The WeNatal Commitment:
Science Over Fear

Every batch of WeNatal supplements is third-party tested to ensure heavy metal levels remain below safe, regulated limits.

We comply with both USP and Prop 65 standards, exceeding national safety benchmarks.

We do NOT rely on fear-based marketing—we believe in science-backed formulations that truly support women’s health.

Bottom Line:
 You Can Trust WeNatal

We created a prenatal because we couldn't find one that fit our high standards for safety and efficacy. Most prenatals on the market
still do not meet expert-backed nutritional guidelines for pregnancy.

Bottom Line:
 You Can Trust WeNatal

We created a prenatal because we couldn't find one that fit our high standards for safety and efficacy. Most prenatals on the market
still do not meet expert-backed nutritional guidelines for pregnancy.

  • WeNatal’s prenatal supplements are tested against the strictest standards, ensuring they are safe for you and your baby.

  • We do not formulate based on outdated comparisons to baby food limits—we follow science, USP, and Prop 65 guidelines.
  • If you have concerns, we encourage you to consult with your fertility specialist or birth provider to ensure you’re choosing the best supplement for your unique needs.

Have more questions?

📩 Email us at: care@wenatal.com

We’re committed to full transparency, without fear-mongering—because you deserve science-backed prenatal support.

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