Lack of various vitamins, what are the manifestations?

The body lacks various vitamins and will have the following manifestations. If a person's body lacks vitamin A, night blindness will occur and his skin will be very dry. If vitamin D is lacking, rickets will occur. Lack of vitamin B will often appear in our feet, and there will be some beriberi in our feet. Without vitamin B2, our lips and squabbles will often become inflamed. If vitamin B 12 is deficient, there will be some scurvy, so vitamins still have a great impact on our health. Because vitamin B appears in food, some vitamins are not lacking, but the symptoms are different. Some people used to think that beriberi was caused by vitamin B deficiency, but it was not like this. When people do an experiment, they will find that beriberi is not caused, nor will people who lack vitamin B. If people who smoke a lot, for example, vitamin B is rich, the easiest way is to observe their tongues, which are pink and smooth, and sometimes bite their tongues. This is also a very normal phenomenon. If we look at a child, if his tongue lacks vitamin B, there will be some obvious differences in his tongue, because their tongues are all white. If protein is lacking, his muscles will be very relaxed, his resistance will drop, and he will easily catch a cold. If we lack vitamin B, we should eat more eggs and animal livers to supplement vitamins, which can also prevent cardiovascular and cerebrovascular diseases. If we are short of vitamin D, we should take patients outside to bask in the sun, and take a sun bath when we are free, which is also very good for our health. If our bodies lack vitamin E, it will be very beneficial to our health. If vitamin D is lacking, children will suffer from rickets. They should take more vitamin D and calcium tablets and get more sunshine.