Yes, cheese is keto-friendly due to its high fat and low carb content. Just watch portion sizes, as carbs can add up. Hard cheeses typically have fewer carbs than soft ones. Avoid pre-shredded cheese with added starches. Net carbs range from 0g (Babybel, chèvre, halloumi) to about 1.6g per ounce (cream cheese), with cottage cheese being the highest at 2.9g per 4 oz. Chef Janine prefers low-carb varieties like Gruyère, Brie, and Camembert.