Keto Before And After (My Personal Experience) 

http://theketoguy.net/keto-before-and-after/

List Of Keto Approved Foods

70-80% of your Calories should come from fat. Below is a list of foods that fit that criteria:

Almonds (nuts, oil, butter, and unsweetened milk) Avocado (fruit and oil)
Beef tallow
Blue cheese
Brazil nuts
Butter (I recommend Kerrygold)
Cheese (cheddar, Colby, feta, mozzarella, provolone, ricotta, Swiss, and others) Chia seeds
Chicken fat
Coconut (oil, cream, and unsweetened milk)