It’s best to avoid drinking regular dairy milk on a keto diet because it contains lactose — “milk sugar.” (That’s carbs!) If you need something for your coffee or tea, consider using heavy cream or half & half, which are much lower in carbs. You may also use unsweetened nut or seed milks, such as almond or cashew milk, or a blend with coconut milk. Always be sure to buy the unsweetened variety — the package often looks almost the same as the full-sugar version. And you might find that you don’t need any milk on a keto diet because you’re no longer eating cereal, cookies, and other things you probably used milk for in the past.