Feed your baby peanuts
Asthma and hay fever rates among people who grew up in the former West Germany are significantly higher than among people who grew up in the former East Germany. In the GDR, factors like less pet ownership, different nutritional patterns, and exposure to pollutants like coal and wood smoke were linked to lower rates of some allergies. So childhood exposure to certain antigens can protect against allergies in later life.
This also applies to dietary allergens.
“A decade after a landmark study proved that feeding peanut products to young babies could prevent development of life-threatening allergies, new research finds the change has made a big difference in the real world.
“About 60,000 children have avoided developing peanut allergies after guidance first issued in 2015 upended medical practice by recommending introducing the allergen to infants starting as early as 4 months.”
feeding babies peanuts early avoids allergies
This also applies to dietary allergens.
“A decade after a landmark study proved that feeding peanut products to young babies could prevent development of life-threatening allergies, new research finds the change has made a big difference in the real world.
“About 60,000 children have avoided developing peanut allergies after guidance first issued in 2015 upended medical practice by recommending introducing the allergen to infants starting as early as 4 months.”
feeding babies peanuts early avoids allergies

Joel:
I suspected the use of peanut butter was the supplement provided. Easy enough to taste for sure. As taken from the article: “little tastes of peanut butter, milk-based yogurt, soy-based yogurts and tree butters” will be enough to cancel out an allergy