The nutritional value of protein mainly depends on the digestibility of protein and the types and combinations of amino acids. Protein is easily digested, absorbed and utilized by human body, and has high nutritional value. From the point of view of digestion, plant protein is difficult to digest because it is wrapped by fiber membrane, so animal protein is easier to digest and absorb than plant protein.

According to the types and combinations of amino acids, human protein consists of 20 kinds of amino acids, of which 12 kinds of amino acids can be synthesized by human body through its own biochemical reactions, which are called non-essential amino acids. There are 8 kinds of amino acids that cannot be synthesized by human body and must be provided by food, which are called essential amino acids. Animal protein generally contains 8 kinds of amino acids necessary for human body, especially egg products and dairy products, so its nutritional value is higher than that of plant protein. Animal protein is beneficial to people of all ages.

But is vegetable protein useless? The answer is of course no. It contains almost no cholesterol and saturated fatty acids. At the same time, if used together, it can improve its absorption and utilization rate and nutritional value. The general suggestion is comprehensive use. Mixed use is best.

The above information is ready-made. Tell me my opinion. If you are afraid of high cholesterol, the ratio of plant protein to animal protein is one to one. If you don't have these concerns, then one to three is also good.