What is the Keto Diet?
The ketogenic diet is a very low-carbohydrate, high-fat diet that shifts your body into a metabolic state called ketosis. When glucose (from carbs) is scarce, your liver converts fat into ketones, which become the primary fuel source for your brain and body.
Key Principles
- Keep net carbs under 20–50g per day
- Fat should make up 70–80% of daily calories
- Moderate protein: 15–25% of calories
- Eliminate all grains, sugars, and starchy vegetables
- Focus on whole foods: meat, fish, eggs, nuts, seeds, low-carb veg
Foods to Eat & Avoid
- Meat & fish
- Eggs
- Cheese & butter
- Avocados
- Low-carb vegetables (leafy greens, broccoli, zucchini)
- Nuts & seeds
- Olive oil & coconut oil
- Berries (in moderation)
- Bread, pasta & rice
- Sugar & honey
- Most fruits
- Legumes & beans
- Root vegetables (potatoes, carrots)
- Alcohol (most)
- Processed foods
Common Ingredient Substitutions
The full converter has 600+ substitutions across all 10 diets. Highlighted ingredients in results show exactly what was swapped.
How the Recipe Converter Works
Paste Your Recipe
Copy ingredients and instructions from any recipe website — even partial recipes are fine.
Select Keto
Choose the Keto diet card in the converter and click Convert Recipe.
Read the Highlights
Every substituted ingredient is highlighted in cyan. Hover to see what was replaced and why.