Eating carrots can supplement the following substances: 1. carotene, carotene constitutes an important raw material for the retina, eating carrots appropriately to supplement carotene has a good effect on relieving visual fatigue and improving the level of vision, especially dark vision. 2. dietary fiber, dietary fiber can absorb water and swell, promoting the formation of feces, and at the same time can mechanically stimulate intestinal peristalsis and promote defecation, eating carrots to supplement dietary fiber has a good effect on preventing constipation. 3. 3, from the point of view of Chinese medicine diet therapy can be supplemented spleen and stomach, for the spleen and stomach weakness caused by loss of appetite, indigestion people, appropriate eat carrots have a good role in supplementing the spleen and stomach.