Diet wars as modern religion – Food isn’t just food anymore. It’s identity, morality, and sometimes even a substitute for religion. Dinner tables that once hosted debates about politics now host debates about carbs. Bread is cast as the devil, almond milk as salvation, and every plate feels like a declaration of faith.

The New Faith Systems

• Keto: The Church of Ketosis. Converts report mental clarity, appetite salvation, and brain healing. Their saints? Dr. Georgia Ede, Dr. Atkins. Their sin? Bread. (and if you want the fire-and-brimstone version, Dr. Anthony Chaffee preaching that plants are poison)

• Veganism: The Plant-Based Temple. Holiness measured in cruelty-free protein powders and oat milk lattes. Sin? Bacon.

• Mediterranean Diet: The chill, wine-drinking monks. Bread and olive oil are sacred sacraments. Sin? Eating like an American.

Each offers a doctrine, a moral code, and a promise of salvation: long life, lean body, healed mind.

Sins and Redemption

Like old religions, these diets run on sin and forgiveness. Keto followers repent by cutting carbs down to nothing, often enduring the “keto flu” like a rite of passage (Sampaio, 2016). Vegans atone through substitutions, turning butter into margarine and milk into oat blends (van Vliet, Kronberg, & Provenza, 2020). Mediterranean followers believe moderation itself is the path to grace,  a little indulgence balanced by olive oil and red wine.

Each system promises redemption: fewer pills, sharper minds, longer lives.

The Holy Wars

Step into social media and you’ll find the battlefield. Keto believers dismiss vegans as nutrient-starved, while vegans argue that keto is simply heart disease in disguise. Mediterranean eaters rarely join the fight; they’re too busy with mezze plates.

Research papers become scripture, influencers deliver sermons, and meanwhile, the people who just want to eat lunch get caught in the crossfire.

The Forgotten Truth

What all sides forget is that humans have always survived on radically different diets. The Inuit lived on seal fat. The Okinawans thrived on sweet potatoes. Mediterranean villagers relied on bread and olive oil.

Biology backs this up: we are omnivores by design. Our stomachs can handle fat and protein, our long intestines can process plants (Leonard & Robertson, 1997). Our brains expanded in part because of nutrient-dense animal foods like marrow and seafood, but our survival was secured by roots, grains, and fruits when hunting failed (Ungar & Sponheimer, 2011). Flexibility, not purity, is what allowed Homo sapiens to outlast other hominins.

Our ancestors didn’t argue about carbs. They ate what wouldn’t kill them and kept moving.

Capitalism as the Cult Leader

The loudest voice in the diet wars isn’t keto or veganism, it’s capitalism. Every diet has its tithes: almond flour, protein shakes, vegan cookbooks, Mediterranean meal kits, twelve-dollar juices. Guilt is profitable. The more broken people feel, the easier it is to sell them redemption.

Diet wars might look like ideology, but they function like business. And in business, the house always wins (O’Keefe & Cordain, 2004).

Here’s where the revolution gets messy. Fake meat often carries a smaller footprint – up to 77% lower emissions and 99% less water use in some studies. But when a trend becomes a consumer juggernaut, complete with factories, packaging, and supply chains, it starts playing by the same rules as Big Meat. As one Stanford researcher warns, alt-proteins aren’t yet shrinking industrial livestock’s footprint in practice. Meanwhile, the plant-based market is set to quadruple by 2030, reaching $24 billion globally.

Because industry scales fast, and not always sustainably .

So… What’s the Best Diet for Humans?

After all the holy wars, the hashtags, and the fasting prophets, the truth isn’t glamorous. The best diet is not keto, vegan, or Mediterranean.

It’s the one that:

• Nourishes: actually feeds your cells what they need (Ede, Danan, Westman, & Saslow, 2022).

• Protects: keeps inflammation and toxins low (Jang et al., 2023).

• Energizes: matches your lifestyle, whether that’s marathons or surviving Jakarta traffic.

Principles, not dogma:

• Whole foods over processed ones (Bjelakovic et al., 2007).

• Balance plants and animal sources for diversity (van Vliet et al., 2020).

• Carbs, fats, proteins that flex with your age, health, and life stage.

A child, an athlete, and someone managing chronic illness should never be handed the same dietary bible.

Food doesn’t need to be a religion. It doesn’t need to come with sainthood or guilt. It just needs to be dinner.

Further Reading 

• Reality Is Glitched  – Survival through adaptability in a world that doesn’t make sense.
• Happiness Leaves Out the People Who Hold It Together  – Why cultural metrics of happiness erase the invisible labor that sustains society.
• The Business Model of Healing: Why Therapy Still Sounds Like Freud  – How therapy, like diets, often turns survival into an industry.
• The Villain Era Is a Marketing Lie, But That Doesn’t Mean It’s Powerless – A critique of how rebellion gets branded, packaged, and sold back to us.