A long-running low-carb and carnivore-diet writer publishes deep, citation-heavy analyses of ketosis, ketone metabolism, and nutrition myths like nose-to-tail eating. Readers get a critical, evidence-driven look at ketogenic claims and supplements, with some rough 'notes' posts in the mix.

Michael Easter, author of The Comfort Crisis, publishes three posts a week on health, fitness, nutrition, mindset and performance, mixing podcast interviews, personal essays and a monthly roundup of studies and ideas. A reader gets practical takeaways and stories about resilience, longevity and living better.

A newsletter from a former New York Times journalist and health coach covering strength training, nutrition and longevity, with video demonstrations, quick whole-food recipes and occasional audio essays. It mixes critical commentary on health media and longevity hype with practical training and cooking guidance.

A London-based newsletter that turns human nutrition research into practical food advice for everyday problems like winter immunity, evening cortisol and afternoon tiredness. Each issue checks popular food claims against actual trial evidence, though some sections are behind a subscription paywall.