The invention is a nutritional composition in unit dosage form for oral administration to an animal or human, which includes at least one ingredient from each of six biological Kingdoms selected from the group consisting of animals, plants, fungi, bacteria, protist and archaea. Each ingredient is co-admixed with every other said ingredient without further addition of synthetic excipients or fillers, and is typically formulated in dried powder form as a drink mix, food or beverage additive or as the fill for hard or soft capsules or other dosage forms including tablets (the compositions of the invention can generally be tableted without addition of ingredients beyond the nutrients themselves).