Nutrition and Food Sources

Bitter gourd (bitter melon) is widely used in traditional medicine for diabetes management and has some scientific backing. It contains compounds that mimic insulin and may help lower blood glucose levels. In contrast, potato and rice are high-carbohydrate foods that would raise blood sugar levels - the opposite of what a diabetic needs. Tomato is lower in carbs but doesn't have the same blood sugar-regulating properties as bitter gourd.

While coconut water was used experimentally as IV fluid in WWII emergencies due to its electrolyte content, it is NOT a medically acceptable blood plasma substitute. It lacks essential components like albumin, clotting factors, and has incorrect osmolarity. Using coconut water as plasma substitute would be dangerous and is not medical practice. The answer 'False' is correct.

This is a branding/trick question. 'Parle-G' and 'Tiger' are both biscuit brands from Parle. The question asks why you should eat Parle-G instead of Tiger. None of the given reasons (taste, price, vitamins) are necessarily correct as both are similar products, making 'None of these' the logical answer.

This is an odd-one-out question testing food source classification. Beef liver is the only animal product in the list, while wheat germ, spinach, and avocado are all plant-based sources. The question tests ability to categorize foods by their biological origin.

From 'All fruit is nutritious' and 'All fruit is tasty', we know that the set of fruit is contained in both nutritious and tasty things. This means there exists an overlap between tasty and nutritious things - specifically, the fruit. Option A is incorrect because we only know that all fruit is both tasty and nutritious, not that ALL tasty things are nutritious. There could be tasty things that are not fruit and not nutritious.

Soya bean has the highest protein content among the options. Soybeans contain approximately 36-56% protein by weight, significantly more than sprouts (~13%), beans (~21-25%), or milk (~3.3%). This makes soy an excellent plant-based protein source.

Oats are among the highest-fiber cereals, containing approximately 10-15% fiber by weight, including soluble beta-glucan fiber. While maize, wheat, and millets do contain fiber, oats have the highest concentration and are specifically recommended for digestive health and heart benefits due to their soluble fiber content.

Fish, especially fatty fish like salmon, mackerel, sardines, and trout, are the richest natural dietary sources of omega-3 fatty acids (EPA and DHA). Plant sources like flaxseeds contain omega-3 but in a different form (ALA) that the body converts less efficiently.

Chewing gum does not prevent onion tears. Onion vapors contain sulfur compounds that react with eye moisture to form sulfuric acid - chewing gum doesn't block this chemical reaction or prevent the eye irritation.

There's no scientific evidence that eating onions after fatty meals reduces cholesterol. Onions contain some beneficial compounds, but the claim about post-meal cholesterol reduction is not supported by research. Cholesterol management requires long-term dietary changes.