Most adults of Western descent are unable to digest milk due to lactose intolerance.
NOT BSTOTAL BS
TOTAL BS — Verdict: False
Verified by Lenz ·
The Short Version
This claim is false. In medical and genetic contexts, "Western descent" refers to European ancestry — the population with the highest rates of lactase persistence worldwide. Studies consistently show only 5–28% of Europeans are lactose intolerant, meaning the vast majority *can* digest milk. The claim appears to confuse global lactose intolerance rates (68%) with rates specific to European-descended populations. Lactase persistence evolved in European populations over millennia of dairy farming, making lactose tolerance — not intolerance — the norm.
Caveats
The global lactose malabsorption rate of 68% does not apply to people of European descent; the same meta-analysis estimates only ~28% for western/southern/northern Europe.
The claim relies on an ambiguous use of 'Western descent' — in genetics and medicine, this refers to European ancestry, where lactose tolerance is dominant (80–95% in Northern Europeans).
Lactose intolerance rates vary dramatically by specific ancestry: ~5% for Northern Europeans vs. 70–90% for East Asian or West African populations. Blanket statements about 'Western descent' obscure this critical variation.