Dietetic substances for the dietary management of Alzheimer's disease in the nature of fortifying food for the dietary management of Alzheimer's disease in the nature of beverages adapted for medical use; dietetic foods adapted for medical use; nutritional dietary supplements for the dietary management of Alzheimer's disease; a combination of active nutrients for the dietary management of Alzheimer's disease in the nature of a nutritional supplement in the nature of a nutrient-dense protein-based drink mix; micro-nutrient preparations for the prevent of Alzheimer's disease; ingredients, in particular a combination of ingredients, used in or for food products for the dietary management of Alzheimer's disease in the nature of probiotics, prebiotics and vitamins; preparations and substances for the dietary management of Alzheimer's disease in the nature of dietary supplements; Pharmaceutical preparations for the treatment of Alzheimer's disease; dietetic foods adapted for medical use; fortifying food for medical use, namely, food for babies, infants, children, adults, elderly people, people with medical conditions, people with diseases and invalids in the nature of nutritional dietary supplements; nutritional dietary supplements for medical use; all of the foregoing containing a combination of ingredients featuring active nutrients in the nature of probiotics, prebiotics and vitamins; nutritional supplements; dietary supplements; fortifying food for medical use, namely, dietary supplemental drinks, medicinal drinks and electrolyte drinks for children, adults and the elderly for use in the treatment of Alzheimer's disease and/or for support of memory, synaptic function, cognitive function and formation of synapses; nutritional dietary supplements for medical use in the treatment of Alzheimer's disease and other conditions requiring support for synapse formation; nutritional supplements for support of memory, synaptic function, cognitive function and formation of synapses, and none of the foregoing for veterinary use