Signs of zinc deficiency include hair loss, skin rashes, poor wound healing, frequent infections, loss of appetite, diarrhea, and changes in taste/smell, affecting immunity, skin, and growth; it's crucial for bodily functions, so a lack impacts many systems, with symptoms like fatigue, irritability, and nail changes also common.
Not having enough zinc can result in changes to your skin, hair and immune system. The main causes of zinc deficiency are when your body has trouble absorbing (taking in) zinc, or you don't get enough zinc in your diet. Zinc supplements are used to treat low zinc levels.
10 Signs and Symptoms of Zinc Deficiency
Side effects that you should report to your care team as soon as possible: Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat.
Zinc Taste Test Procedure
Put 2 teaspoons of the zinc solution in your mouth, swirling it for 30 seconds, then simply swallow it or spit it out. Take note of your reactions to the zinc, expressed either as facial expressions or verbal comments.
The food highest in zinc is oysters, which contain significantly more zinc per serving than any other food, followed by other shellfish like crab and lobster, and then red meats such as beef, lamb, and pork. Other excellent sources include poultry, nuts (cashews, pumpkin seeds), legumes (lentils, chickpeas), dairy products, eggs, and fortified cereals, though zinc from plant sources is less easily absorbed.
If large doses of zinc (10-15 times higher than the RDA) are taken by mouth even for a short time, stomach cramps, nausea, and vomiting may occur. Ingesting high levels of zinc for several months may cause anemia, damage the pancreas, and decrease levels of high-density lipoprotein (HDL) cholesterol.
Mild zinc deficiency should be treated with zinc supplementation at two to three times the recommended dietary allowance (RDA), whereas moderate to severe deficiency can be treated at four to five times the RDA. Treatment should last for six months.
Conditioned deficiency of zinc has been observed in patients with malabsorption syndrome, liver disease, chronic renal disease, sickle cell disease, and other chronic illnesses.
Because zinc affects so many systems in the body, there is no single distinct symptom of zinc deficiency. Some of the more common symptoms include loss of or diminished smell and taste, poor wound healing, hair loss, roughening of skin/rashes, low libido (men), canker sores, lethargy, and deformed nails.
There is slower conduction of electrical signals along brainstem auditory pathways in zinc-deficient patients with the short bowel syndrome. Adequate zinc supplementation in patients complaining of tinnitus decreased dizziness in all of the patients with both symptoms.
It is often said that nutrients in our diet are essential for good sleep. The link between sleep and zinc has been the subject of little research. However, research has shown that zinc deficiency increases the risk of disturbed and short-lived sleep.
While joint pain is more commonly associated with deficiencies in vitamin D or calcium, zinc deficiency can also lead to inflammation and joint discomfort. If you're experiencing unexplained joint pain, consider checking your zinc levels.
The liver is the main organ responsible for the zinc metabolism which can be affected by liver diseases. On the other hand, zinc deficiency may alter hepatocyte functions and also immune responses in inflammatory liver diseases.
Early symptoms of zinc deficiency include a loss of appetite and, in infants and children, slowed growth and development. People may lose their hair in patches. They may feel sluggish and irritable. Taste and smell may be impaired.
About two teaspoonfuls of 0.1% zinc sulfate heptahydrate solution is swished in the mouth and the patient is asked to describe the taste. No taste indicates a severe deficiency, while an immediately unpleasant taste indicates the person has adequate zinc levels.
Meat, fish and other seafood, eggs, and dairy products are good sources of zinc. Oysters contain particularly high amounts of zinc. Beans, nuts, and whole grains also contain zinc, but the bioavailability of zinc from these foods is lower than that of animal foods.
Taking zinc supplements by mouth long-term and in high doses can lead to copper deficiency. People with low copper levels might have brain and nervous system issues. Those issues may include numbness and weakness in the arms and legs.
Phytates (phytic acid) in whole grains, seeds, legumes, some nuts—can decrease the absorption of iron, zinc, magnesium, and calcium. [2,3] Saponins in legumes, whole grains—can interfere with normal nutrient absorption.
There is another theory that having a zinc deficiency can lead to Tumor Necrosis Factor alpha (TNF-a). This is a chemical messenger that causes the immune system to cause damage to healthy tissues in the body. This includes hair, and it can cause hair loss.
Zinc-rich fruits
Yogurt. In addition to being a good source of calcium and protein, yogurt can contribute almost 10% of your daily zinc intake in a 150 g serving of greek, nonfat yogurt. Combine with some of the plant-based options on this list like almonds or peanut butter for a high protein, high zinc breakfast.