How is the development of coarse grain food in the market?

Coarse grain food is a new industry, and now it is paid more and more attention. There is still a difference between coarse grains and traditional drinks. Coarse grain food is mainly to help digestion. Now people's diet is very greasy and needs some coarse grains to balance it. Personally, I think Deyufang is not bad and doing well. for reference only