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rBGH/rBST (Dairy Hormones)

Growth hormone in US milk. Banned in EU, Canada, Japan. Walmart went rBST-free voluntarily.

Recombinant bovine growth hormone (rBGH/rBST), developed by Monsanto and approved by the FDA in 1993, boosts milk production by 10-15% in treated cows but is banned in the EU, Canada, Australia, New Zealand, and Japan due to animal welfare risks—including increased mastitis and lameness—and concerns over elevated IGF-1 in milk. This consumer-led shift shows that market forces can accomplish what regulation has not.

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rBGH/rBST (Dairy Hormones)

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