Blitz Keto The National Lipid Association review urges that patients with lipid disorders , a history of atherosclerotic cardiovascular disease , heart failure and kidney and liver disease take caution if considering the diet. Ketogenic diets have helped control seizures caused by this condition since the 1920s. But again, it’s important to work with your doctor to figure out what’s right for you or your child. Blitz Keto Reviews Foods that are generally allowed include high-fat meats, fish, oils, nuts, high-fat dairy such as cheese, and low-carb vegetables. Drinks to avoid on the keto are essentially any drinks with sugar in.