Average monthly weather in Calcutta, India. Kolkata has a Tropical wet-and-dry climate. (80 Â°Fahrenheit). Summers are hot and humid with temperatures in the low 30's and during dry spells the maximum temperatures often exceed 40 Â°C (104 Â°F) during May and June.
Food allergy is an immune system reaction that occurs soon after eating a certain food. Even a tiny amount of the allergy-causing food can trigger signs and symptoms such as digestive problems, hives or swollen airways.n some people, a food allergy can cause severe symptoms or even a life-threatening reaction known as anaphylaxis. Food allergy affects an estimated 6 to 8 percent of children under age 3 and up to 3 percent of adults.
Defining Food Allergies. A food allergy is an unusual response to a food caused by the bodyâs immune system. Allergic reactions to food can sometimes cause serious illness and even death.Tree nuts and peanuts are the leading causes of dangerous allergic reactions called anaphylaxis.efining Food Allergies. A food allergy is an unusual response to a food caused by the bodyâs immune system. Allergic reactions to food can sometimes cause serious illness and even death.