If you stick to the food listed in the previous section, you do not have to worry about not achieving optimal ketosis. On the same note, as you increase intake of those foods, you should also be on the lookout for the following foods that may hinder ketosis:
Avoid all grains, whole meal included (rye, wheat, oats, barley, corn, millet, rice sorghum and buckwheat). Also, avoid all products made from grains; these include foods such as crackers, pasta, pizza, and cookies.
Avoid refined fats and oils like sunflower, canola, grape seed, corn oil, soybean, and Trans-fats such as margarine.
Avoid milk (only full-fat raw milk is acceptable). For coffee, replace milk with reasonable amounts of cream.
Avoid tropical fruits such as bananas, pineapples, mango papaya, etc., and some high carb fruit.
Avoid fruit juice.
Avoid factory-farmed pork and fish.
Avoid all artificial sweeteners containing Aspartame, Sucralose, Saccharine, etc.
Avoid alcoholic sweet drinks such as beer, and sweet wine Avoid Soy products.
Avoid Soy products.
