A highly versatile comprehensive nutritional system comprising a base mix and a flavoring. The base mix includes at least one protein containing ingredient and the flavoring includes at least one flavoring agent. The base mix and flavoring are brought together in the presence of a sufficient quantity of water just prior to use. In the preferred form the highly versatile comprehensive nutritional system is comprised of three proteins containing ingredients and also includes lecithin. The flavoring in the preferred form includes at least one flavor agent, such as source of chocolate flavor or a vegetable.