Can we really claim a diet is healthy when the American Dietetic Association—the world's largest organization of nutrition professionals—states that appropriately planned vegan diets are healthful and provide benefits in preventing disease? Because the data is overwhelming here. Studies in the Journal of the American College of Cardiology link plant-based diets to lower heart disease risk by 40%, and the EPIC-Oxford study found vegans have significantly lower BMI and cholesterol. I'm not saying every vegan eats perfectly—you can live on Oreos and fries. But the epidemiological evidence consistently shows reduced rates of hypertension, type 2 diabetes, and certain cancers among those who avoid animal products. The burden of proof now shifts to show how adding meat back improves these outcomes. The science is actually on our side here.

You're leaning hard on that Nature study about nutrient deficiencies, but let's be clear—that scenario assumes zero planning or supplementation. We don't tell pregnant women "just eat whatever and hope for folate," we recommend supplements. Same logic applies here. The ADA and Academy of Nutrition and Dietetics both confirm that well-planned vegan diets are adequate for all life stages. And about that 60% marginal land argument—it's a red herring. Most of that land is used for grazing, but we still grow massive amounts of soy and corn to feed those animals. We're already using arable land inefficiently. If we shifted to direct human consumption, we'd actually need less land overall. The B12 point is fair—I'll grant you that. But it's a cheap, widely available supplement, not a reason to keep factory farming. The nutrient deficiency crisis is solvable. Climate change and animal suffering are not.