The nutritional deficiency of modern people is not caused by a lack of food and drink, but by consuming overly refined foods and neglecting nutritional balance. Therefore, besides internal reactions, we can first observe some clues from parts of the body such as the eyes, nose, mouth, nails, and hair. The signals manifested in these areas are the primary focus that every doctor asks about and pays attention to during diagnosis and treatment. For ordinary people, having some knowledge of these signals will help regulate the body's nutritional condition. Mouth Signals
If you find the corners of your mouth are red, chronically chapped, and your lips and tongue are painful, you are very likely to have angular cheilitis due to nutritional deficiency. If left unattended, it can lead to canker sores and lymphadenitis. The main causes of angular cheilitis are a lack of iron, vitamin B2 (riboflavin), and vitamin B6. Internally, a deficiency of these two vitamins can cause anemia and affect the body's growth and development. Supplementation Methods
Eat green leafy vegetables like spinach, and regularly consume pork, beef, liver, beans, etc. Take vitamin B complex nutritional supplements. Lip Signals
Cracked, peeling lips, and blurred lip lines are signs of lip problems, indicating a deficiency in vitamin B2 and vitamin C. Supplementation Methods
Eat more green vegetables, citrus fruits, tomatoes, melons, potatoes, etc. Take vitamin B complex and vitamin C tablets. Tongue Signals
If you find your tongue is overly smooth, the taste buds are raised and red, and the sides of the tip of the tongue are yellow or white, it indicates a deficiency in folic acid and iron. A lack of these substances will hinder the production of red blood cells in the bone marrow, leading to glossitis, anemia, gastrointestinal dysfunction, and poor growth and development. Supplementation Methods
Eat more liver, spinach, whole wheat bread and take B-complex nutritional supplements containing folic acid. Nose Signals
If the sides of your nose are red, oily, shiny, and often peeling, it indicates a zinc deficiency in your body. Zinc deficiency can lead to loss of appetite and metabolic disorders. However, zinc deficiency is relatively rare. Supplementation Methods
Most foods contain zinc. As long as you don't have a picky diet, zinc deficiency can be corrected. You can also take multivitamin supplements containing zinc. Nail Signals
White spots on the nails indicate a zinc deficiency. Nails that break easily indicate an iron deficiency. Zinc and iron deficiencies can sometimes occur simultaneously. Supplementation Methods
Eat more spinach, liver, pork, beef, and mutton, and take multivitamin supplements containing zinc. Hair Signals
Hair loss, painless hair when pulled out, and hair that tangles easily indicate a deficiency in vitamin C and iron. A change in hair color to become lighter or paler is a sign of low vitamin B12. A deficiency in B12 affects the production of red blood cells and the nervous system in the body. Regulation Methods
Eat more dairy products, liver, fish, and beans. Supplement with B-complex nutritional supplements.