The referral value for normal adults in the glucose fasting test should be 70-110 Mg/dl while the post-prandial value should be 90-150 Mg/dl. In a random test, it is 80-140 mg/dl.

Excess thirst, frequent urination, tiredness and weight loss are some of the common symptoms that indicate a person should be tested for diabetes. Someone may look normal but still have high sugar level and therefore is advised to consult a doctor if he or she is 40 years old.

Smoking, alcohol, blood pressure and hypertension can lead to diabetes. Some doctors recommend diabetes tests at age 30.

Prohibited foods include ghee, butter, coconut oil, palm oil and vanaspathi. Sugar, honey, glucose, jam, jaggery, sweets, tender coconut water, alcoholic beverages, banana, mango, jack fruit, custard apple, grapes and potatoes are also foods to avoid if you are at risk of diabetes.

Fibre-rich foods help control diabetes and reduce blood cholesterol. Green leafy vegetables, whole cereals and pulses such as Bengal gram/ black gram are recommended.

Beans, bitter gourd, brinjal, cabbage, cucumber, cauliflower, chow-chow, drumstick, capsicum, ladies finger, onion, tomato, turnip and radish help keep diabetes at bay.