01/22/2026
Most people think of estrogen exposure as coming from plastics or personal care products, but grains are another source to consider.
Many grains (like wheat, corn, rice, and barley) are commonly contaminated with mycoestrogens, estrogen-like compounds produced by mold that grows on crops.
New research found:
đMycoestrogens were detected in 84% of placentas studied.
Higher levels were linked to:
⢠Lower placental efficiency
⢠Heavier placentas but smaller babies
⢠Lower birth weights, especially in certain babies
In simple terms:
The placenta was working harder, but transferring nutrients less efficientlyâď¸
Some babies may be more vulnerableâŚ
The effects were strongest in infants with a common genetic variant that reduces the placentaâs ability to pump toxins away from the fetus.
Where are these mycoestrogens coming from?
Primarily from grain-based foods, including:
⢠Bread, pasta, cereal, baked goods
⢠Corn-based products
⢠Foods contains gluten, rice, oats
⢠Processed foods made from grains
These mold-derived estrogens are heat-stableâthey arenât reliably removed by cooking or processing.
Why this mattersâŚ
Preconception and pregnancy are periods of rapid cellular programming.
đ Reducing exposures that interfere with hormones, mitochondria, and placental function is one of the most powerful ways to support:
⢠Healthy fetal growth
⢠Long-term child health
⢠Future fertility and metabolic resilience
If youâre planning a pregnancy or are already pregnant, focusing on clean, low-mold, whole-food nutrition can make a meaningful difference.
If you want to learn more about how toxins impact pregnancy comment âToxinsâ and Iâll send you the link to my free report.
Dr. Ann