Corn is not one of the eight major allergens that are responsible for 90 percent of all food-based allergic reactions, according to the Food Allergy and Anaphylaxis Network, yet it can cause serious reactions in sensitive individuals. Strict avoidance of the allergen is the best way to handle a food allergy.
Corn Allergy
While corn allergies are rare, they can be as serious as any other food allergy. Both raw and cooked corn can trigger a reaction, as well as products made from corn such as cornstarch. Some individuals also react to corn and grass pollens. If you suspect a corn allergy, speak to your doctor. A simple blood test can help diagnose a corn allergy. Your doctor may also suggest eliminating all sources of corn from your diet for a period of time to see if your symptoms clear up.
Ascorbic Acid
Ascorbic acid, or vitamin C, is an essential nutrient. It aids in healing wounds, maintaining strong bones and making blood cells. Low vitamin C levels are associated with various cancers, gallbladder disease, high blood pressure and stroke. Extreme vitamin C deficiency causes scurvy. Scurvy is rare in the U.S. and is found most often in older, malnourished adults. Anemia, gum disease and skin hemorrhages are symptoms of scurvy.
Dietary sources of vitamin C include fruits, especially citrus, and leafy green vegetables. Synthetic vitamin C is also available in a variety of forms, including tablet, liquid and powder.
Recommended Daily Allowance of Vitamin C
The amount of vitamin C you need depends on your age, gender and health conditions. For example, women need 75 mg per day, while men require 90 mg per day. Smokers and women who are pregnant or breast-feeding need additional vitamin C. Ask your doctor for specific recommendations based on your age, gender and lifestyle.
Precautions
Vitamin C is generally considered safe, even in large doses. However, there are some situations, such as corn allergy, in which you should speak to your doctor before taking vitamin C. Most commercially available ascorbic acid is made with corn, so the best way for corn-sensitive people to get their recommended daily allowance of vitamin C is through their diet.



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