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Copper Sun Companion Series

Keto food list: what to eat and what to avoid

June 10, 2026 · 3 min read

Keto gets simple once you know which foods to build from. Eat mostly from the safe list, avoid the high-carb staples, and treat a middle group with care, and you'll stay under your carb ceiling without much counting. Here's the whole list in three tables.

Eat freely

These are the foundation: protein, healthy fats, and non-starchy vegetables. Build most meals from here.

Category Foods
Protein beef, pork, chicken, eggs, fish, shellfish
Fats olive oil, butter, ghee, avocado, coconut oil
Vegetables spinach, broccoli, zucchini, cauliflower, peppers, mushrooms, asparagus
Dairy hard cheese, full-fat Greek yogurt, heavy cream
Extras olives, nuts and seeds (in measured amounts)

Avoid

These are high enough in carbohydrate to push you out of ketosis quickly.

Category Foods
Grains bread, pasta, rice, oats, cereal
Starches potatoes, corn, most beans
Sugar candy, soda, juice, desserts, honey
Most fruit bananas, grapes, apples, mango

Watch closely

These aren't off-limits, but they add up faster than people expect, which the hidden carbs guide covers.

Food Why to watch it
Nuts calorie-dense and easy to over-pour
Berries lower-carb fruit, but only in small portions
Sauces and dressings added sugar hides here
"Keto" snack bars sugar alcohols like maltitol still count

How to use the list

Knowing the list is most of keto; the how to start keto guide puts it together, and the net carbs explainer shows how to read the in-between foods. For dinner ideas built from the safe column, see easy keto recipes.

When you do want a number, Copper Keto Companion turns a spoken meal into net carbs and macros, so you can check a borderline food against your day in a sentence. See the Copper Keto Companion page.

Frequently asked

What fruit can you eat on keto? Mostly berries, and only in small portions: a few strawberries, raspberries, or blackberries. Most other fruit is too high in sugar to fit a typical carb ceiling.

Are there carbs in cheese and nuts? Yes, small amounts, and they add up. Hard cheeses are low, but nuts vary a lot, so measure them rather than pouring from the bag.