The more common, delayed food allergic reaction involves a different antibody called IgG. Victims are likely to experience problems several hours or days after ingestion of the allergen. Common symptoms include stomach upset, migraine headaches, eczema, hives, runny nose, rashes and asthma. It has been estimated that more than 100 different allergen symptoms and more than 150 medical diseases can be attributed to food allergies and food intolerance. Some people believe the condition can lead to a host of chronic diseases including fatigue, irritable bowel syndrome, arthritis, fluid retention, hives, acne and even hyperactivity in children. Ignoring chronic food intolerances and allergies is thought to weaken the body's immune system, leading to a run-down, generally unwell feeling.
Some people experience dramatic weight loss.
While one out of every three people reportedly think they are allergic to some food item, tests suggest only three per cent of children and one per cent of adults have allergies. These low numbers certainly fail to match the common perception that there is a growing food allergy epidemic. It seems that every month one of my friends experiences food-related health problems. There are several types of allergy testing, including skin-prick tests and testing of diluted food solutions under the tongue. An increasingly popular blood test assesses the level of IgG antibodies against almost 100 different foods.