Breakfast oats for a long time, easy to cause gastrointestinal discomfort, because oats belong to coarse grains, high dietary fiber content, into the gastrointestinal tract is not easy to be digested. Although the nutrition in oats is relatively rich, but breakfast is about nutrition and balanced, should eat oats at the same time eat high protein and high vitamin diet, such as eggs, vegetables, etc., to avoid nutrient deficiencies, thus affecting the organism. Also note that oats are not suitable for all people to eat, infants, the elderly and gastrointestinal tract dysfunction, are not recommended to eat cereal for breakfast for a long time. These people have less gastric juice secretion, gastrointestinal peristalsis is slow, after eating oats easily cause indigestion, resulting in oats in the gastrointestinal tract for too long, easily lead to bloating, diarrhea, belching, etc.. For pregnant women and lactating women, long-term breakfast oats may lead to low body mass and reduced lactation. Developing adolescents eating cereal for breakfast for a long time can lead to malnutrition, slow growth, etc. In addition, long-term use of lipid-lowering drugs and psychotropic drugs patients should not eat oats for a long time, can reduce the absorption of drugs in the body, and thus reduce the effectiveness of drugs. Breakfast should pay attention to diversity, you can eat oats, but do not eat for a long time, you can make appropriate changes every day, for example, this morning eat oats, tomorrow morning can eat bread or buns; and can not eat oats alone, with eggs, milk, soy milk, as well as vegetables and fruits.