Nutrients, combination ketovatru of fat, protein, minerals, vitamins, and carbohydrates it needs to function as it was designed. Once you narrow down the choices based on the above approach [and it will happen quick believe me], then you need to evaluate which plan meets your lifestyle - this is a critical final step. For example, I did not select a plan like Weight Watchers or Jenny Craig. Not because these aren't good, safe, credible plans - they just don't fit my number one keto lifestyle. Attending meetings, adding up points, keeping food .