Nutrition For Mortals The Blood Type Diet
Sep 17, 2025
The Blood Type Diet claims that your ABO type can dictate optimal food choices for health and weight loss. The hosts explore its origins with James D'Adamo and discuss his anecdotal approach versus scientific evidence. They delve into the controversial role of lectins and review numerous studies showing minimal support for the diet. Quirky prescriptions for each blood type are shared, along with amusing takes on personality traits tied to dietary choices. Ultimately, the discussion highlights a lack of rigorous backing for these claims.
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How The Blood Type Diet Became Popular
- Eat Right for Your Type popularized the blood type diet but largely repackaged James D'Adamo's earlier ideas.
- Peter D'Adamo turned his father's anecdotal system into a bestselling, widely known diet book in 1996.
D'Adamo Senior's Clinic Observations
- James D'Adamo reasoned that blood is fundamental and used blood typing to tailor diets in his clinic.
- He believed O evolved first and linked blood groups to ancestral diets, then reported better patient outcomes.
Evolution As The Core Rationale
- The D'Adamos frame blood types as evolutionary messages that dictate optimal diets based on ancestral shifts.
- This evolutionary rationale underpins the claim that each ABO type should follow a distinct eating pattern.