KISs is basically keep it simple. You cut out any LC treats or sweet foods. You also eliminate dairy and some cut out the caffine too. Basically you stick to meats (including eggs) cooked however you want, just no sauces. Also try to avoid processed meats. It's the ATkins induciton list, just the meat and veggie section mostly. Plenty of low carb veggies and of course fat. Try to get your fat to stick up around 70% (oils can really help when you cut out dairy). If you odn't want to go full KISS, you can modify, maybe just cutting out all LC things and limiting dairy.