It can help protect arterial walls throughout the body. Important blood vessels that are under the most stress are the coronary arteries that feed the heart muscle. Vitamin C helps reduce infections and other forms of oxidative stress that affect these blood vessels. It also prevents the oxidation of cholesterol in the bloodstream.
Vitamin C improves lung function and overall oxygenation within the body. Asthmatics tend to have a higher need for vitamin C and doses of 2,000 mg per day lessen the body’s production of histamine and lung associated inflammation.
Vitamin C also improves blood sugar stability which is particularly important for individuals with heart disease and diabetes. When blood sugar is elevated and not properly monitored in the body the sugar molecules bind to proteins in the body and form advanced glycolytic end products (AGE’s). These AGE’s create rampant amounts of tissue damaging oxidative stress in the body.
So, a dosage of 1,000-3,000 mg per day drives down AGE formation and improves circulation and tissue oxygenation.