Am doing the cycling keto diet 5-2. 5 days high protein (60%), high fat(30%) and low carb (10%). 2 days high carbs to refuel my body. Its working really good for me.
if you weight 200lb u can do something like this.

MEAL #1
5 whole eggs (make sure to buy OMEGA-3 EGGS from the supermarket. They contain virtually NO saturated fat and tons of good OMEGA-3 fats); add another 4 egg whites to this (they don?t need to be the Omega-3 ones; you can use liquid egg whites)

MEAL #2
SHAKE: 50g Whey Protein with 1 ? tablespoon of All Natural Peanut butter (no sugar)

MEAL #3
"Lean Protein Meal": 8oz chicken with 1/2-cup cashew nuts (almonds, or walnuts)

MEAL #4
SHAKE: 50g Whey Protein with 1 ? tablespoons of All Natural Peanut butter (no sugar added)

MEAL #5
"Fatty Protein Meal": 8oz Salmon, Swordfish, or RED MEAT with a green salad (no tomatoes, carrots, or red peppers) with 1 tablespoon of Olive Oil or Macadamia nut oil and vinegar

MEAL #6
SHAKE: 50g Whey with 1 ? tablespoon all natural peanut butter or 4 whole (Omega-3) eggs and 4 extra whites

And for my high carbs days i add brown rice to 3 of my meals and get rid off the nuts. i also add oatmeal to my shakes instead of peanut butter.