मधुमेह के रोगियों द्वारा प्रयोग में लाए जाने वाले ‘स्वीटेक्स’ (कृत्रिम मिठास) में कितनी ऊर्जा होती है?

Patients are instructed to swallow a suspension of which compound as a radiopaque contrast agent before undergoing X-ray examination of the gastrointestinal tract?

To combat anemia and iodine deficiency disorders, the Government of India promotes 'double fortified salt'. Which two essential minerals are added to this salt?