What Makes a Food Keto-Friendly
The ketogenic diet typically limits carbohydrates to 20–50g net carbs per day (total carbs minus fiber). This forces your body to burn fat for fuel instead of glucose, producing ketones as an energy source. A food is "keto-friendly" if it is low in net carbs and fits within this daily limit.
Eat Freely (Under 1g Net Carbs Per Serving)
- Meats: beef, pork, chicken, turkey, lamb, bison — all unprocessed meats are zero-carb
- Fish and seafood: salmon, tuna, shrimp, cod, sardines
- Eggs: whole eggs, egg whites (0.6g carb per egg)
- Butter and ghee: zero carbs, high in fat
- Oils: olive oil, coconut oil, avocado oil
- Most cheeses: cheddar, mozzarella, brie, cream cheese (0–1g per oz)
Eat in Moderation (Track Carbs Carefully)
| Food | Serving | Net Carbs |
|---|---|---|
| Avocado | 1/2 fruit | 2g |
| Broccoli | 1 cup | 3.6g |
| Cauliflower | 1 cup | 3.2g |
| Spinach | 1 cup (cooked) | 0.7g |
| Zucchini | 1 cup | 2.7g |
| Bell peppers | 1/2 medium | 3g |
| Almonds | 1 oz | 2.5g |
| Pecans | 1 oz | 1.2g |
| Berries (strawberries) | 1/2 cup | 4.7g |
| Dark chocolate (85%+) | 1 oz | 5g |
| Greek yogurt (full-fat) | 1/2 cup | 3.5g |
| Tomato | 1 medium | 3.3g |
Avoid on Keto
- Grains: bread, rice, pasta, oats, cereal (20–45g carbs per serving)
- Sugar: candy, soda, juice, honey, agave
- Starchy vegetables: potatoes, corn, peas (15–30g carbs per serving)
- Most fruits: bananas (27g), apples (21g), grapes (27g per cup)
- Beans and legumes: black beans (26g), chickpeas (33g per cup)
- Low-fat products: often replace fat with sugar
A Sample Keto Day (Under 25g Net Carbs)
- Breakfast: 3-egg omelet with cheese and spinach (3g carbs)
- Lunch: grilled chicken salad with avocado and olive oil dressing (5g carbs)
- Dinner: salmon with roasted broccoli and butter (6g carbs)
- Snacks: almonds (2.5g) + string cheese (1g)
- Total: ~17.5g net carbs, ~1,600 calories, ~110g protein
Common Keto Mistakes
- Not tracking carbs precisely — 50g is the absolute upper limit; many people unintentionally exceed it
- Ignoring vegetables — keto should not mean all bacon and cheese; non-starchy vegetables are essential
- Undereating protein — protein is more important than fat on keto for maintaining muscle
- Forgetting electrolytes — low-carb diets increase sodium, potassium, and magnesium excretion; supplementation prevents the "keto flu"