1. A food product containing: 1) a composition of hydrolyzed whole grains of cereals； and 2) alpha-amylase or its fragments, where alpha-amylase or its fragments do not have hydrolytic activity against dietary fibers in the active state； where the specified food product is enriched at least at least 2 essential minerals and at least 4 essential vitamins. 2. The food product of claim 1, further comprising a liquid component. The food product according to claim 1, not containing beta-amylase. The food product according to any one of claims 1 to 3, additionally containing a protease or its fragments, at a concentration of 0.001-5% by weight of all whole grains of cereals, where the protease or its fragments do not have hydrolytic activity with respect to dietary fiber in the active state .5. The food product according to any one of claims 1 to 3, not containing a protease. 6. The food product according to any one of claims 1 to 3, additionally containing at least one of amyloglucosidase or its fragment and glucose isomerase or its fragment, where amyloglycosidase or glucose isomerase do not have hydrolytic activity with respect to dietary fiber in the active state. The food product according to any one of claims 1 to 3 with a total content of whole cereal grains in the range of 1-30% by weight of the food product, such as 1-20% and 1-15% .8. The food product according to any one of claims 1 to 3, wherein the composition of hydrolyzed whole grains of cereals has a substantially intact beta-glucan structure compared to the starting material. The food product according to any one of claims 1 to 3, in which the composition is hydrolyzed. whole cereal grains has a substantially intact arabinoxylan structure compared to the starting material. 10. Prod1. Продукт питания, содержащий:1) композицию из гидролизованных цельных зерен злаков и2) альфа-амилазу или ее фрагменты, где альфа-амилаза или ее фрагменты не обладают гидролитической активностью в отношении пищевых волокон в ак
