Why Most Everything We Were Told About Dairy Is Wrong

Health Impact

David Ludwig challenges the conventional wisdom surrounding dairy's role in health, particularly in school nutrition. He argues that the mandatory inclusion of low-fat milk in school lunches is misguided, as research suggests that children consuming whole milk tend to gain less weight than those drinking nonfat milk 1. This contradicts the long-held belief that skim milk aids weight loss. Mark Hyman highlights the flawed assumption that high calcium intake from dairy is essential for bone health, noting that countries with lower calcium consumption often have lower fracture rates 2.

Milk is a sideline here, but his life's work is really understanding the role of carbohydrates and fat in weight and metabolism in a way that I think nobody else has done.

--- Mark Hyman

This suggests that factors beyond calcium intake, such as diet and lifestyle, play a significant role in bone health.

   

Scientific Evidence

The scientific community is reevaluating the health benefits of milk, with David Ludwig and his colleague Walter Willett questioning the USDA's recommendation of three daily servings. They argue that few clinical trials support these guidelines, particularly concerning obesity, diabetes, and cardiovascular disease 3. Ludwig also critiques the short-term nature of calcium balance studies, which fail to demonstrate long-term benefits of high calcium intake for bone health 4.

If you did longer term studies, you would see that adding more and more calcium doesn't keep building up bone.

--- David Ludwig

This calls into question the necessity of high dairy consumption for maintaining strong bones.