Healthiest Diet Comparison: Keto vs Vegan vs Mediterranean
Which diet is actually the healthiest?
Cut through diet industry noise with AI analysis. Compare keto, vegan, Mediterranean, carnivore, and intermittent fasting based on actual science.
Octo's answer
🏆 Top pick: Mediterranean diet3.4/5
The Mediterranean diet scores well for its emphasis on vegetables, legumes, whole grains, nuts, olive oil, and moderate fish. It is a strong fit for people who want a broadly studied pattern, while the Flexitarian diet can be easier to personalize and DASH is particularly relevant when sodium and blood pressure are priorities. The best match depends on health needs, preferences, and sustainability.
This is a close comparison: the top two scores are only 0.0 points apart. Your priorities may change the result.
How the options compare
- 13.4/5
Top pick
Mediterranean diet
A good fit if: Emphasizes vegetables, fruits, whole grains, legumes, nuts, and olive oil, with moderate fish and poultry intake and limited red meat.
- 23.4/5
Flexitarian diet
A good fit if: Primarily plant-based with occasional inclusion of meat and animal products.
- 32.8/5
DASH diet
A good fit if: Focuses on reducing sodium intake and increasing consumption of fruits, vegetables, and low-fat dairy products to improve heart health.
- 42.6/5
Pescatarian diet
A good fit if: Plant-based diet that includes fish and seafood but excludes meat and poultry.
- 52.0/5
Lacto-ovo vegetarian diet
A good fit if: Plant-based diet that includes dairy products and eggs but excludes meat, fish, and poultry.
Criteria used in this analysis
- Nutritional Value · 20%
- Sustainability · 20%
- Variety · 20%
- Ease Of Adherence · 20%
- Health Outcomes · 20%
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This general analysis was generated by Octo Thinks AI on July 20, 2026. Your weights and situation may change the result - run it yourself, free and without sign-up.