In Canada, the top causes of death and disability are chronic diseases, which include lung and cardiovascular disease. By making healthy lifestyle changes, people can greatly reduce their risk of developing the Big Four chronic diseases. Not only is a healthy diet important for weight management, it also protects against obesity, which is a major risk factor for several types of cancer. And of course, it also helps to prevent smoking, which is a leading cause of chronic obstructive pulmonary disease (COPD) and colon cancer.
In addition to helping to prevent chronic diseases, eating a healthy diet can also improve your cholesterol levels and lower your unhealthy triglycerides. Studies have shown that a healthy diet improves blood flow and lowers the risk of heart disease, stroke, and metabolic syndrome. And the best part is, it doesn’t require expensive medical facilities to be successful. It just requires some behavior changes and investments in food policies and urban physical infrastructure.
Symptoms of vitamin A deficiency may include: impaired dark adaptation, headache, blurred vision, fatigue, and loss of appetite. Severe vitamin A poisoning may cause liver and eye damage. Vitamin A overdose can also lead to convulsions, irregular heartbeat, and confusion. Excessive vitamin A can also cause liver failure. If you suspect that you are deficient in vitamin A, you should contact your doctor immediately.
There are two types of hypervitaminosis A: acute and chronic. Acute toxicity occurs when the body is exposed to excessive amounts of vitamin A over a short period of time. It causes dry skin, joint and bone pain, and fatigue. Liver tests may reveal mild or moderate abnormalities, and in severe cases, liver enlargement may be present. Reducing vitamin A intake usually improves symptoms. However, people who have chronic toxicity should seek medical care immediately.
Acute vitamin A toxicity occurs when an adult consumes more than 25,000 IUs of vitamin A daily. Chronic vitamin A poisoning may develop if the person is taking more than 25,000 IUs per day. Vitamin A toxicity is much more common in infants and children, and small amounts of it can cause serious illness. Beta-carotene is harmless in small quantities, but high levels can cause a yellowing of the skin.
Some people also develop a deficiency in vitamin A, and this can result in poor night vision and other eye conditions. Even worse, it can also lead to cancer. While it may seem counterintuitive, Vitamin A helps fight cancer cells. Deficiency can lead to tumor growth. This is because vitamin A can help a fetus develop normally. The onset of cancer may be delayed or even impossible. A deficiency of vitamin A in a pregnant woman can lead to serious health complications.