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.
Diagnosing Food Allergies. A food allergy will usually cause some sort of reaction every time the trigger food is eaten. Symptoms can vary from person to person, and you may not always experience the same symptoms during every reaction.earn more about the types of food allergies. Symptoms. Not everyone who experiences symptoms after eating certain foods has a food allergy or needs to avoid that food entirely; for instance, some people experience an itchy mouth and throat after eating a raw or uncooked fruit or vegetable.