If nutrition is a sport, it has no casual fans. Supporters of Team Protein, the 2025 champions, are numerous and passionate, backed up by a sprawling industry of protein-supplemented products such as popcorn, soda, and cereal. Also popular is Team MAHA, captained by Health Secretary Robert F. Kennedy Jr., which endorses “real foods,” especially red meat and dairy. The Dietitians are veteran players with an old-school strategy: going heavy on plants and light on saturated fats. Alongside