Nutrition MCQs Online Test Questions And Answers

Explanation
A calorie is a measure of the energy that is obtained from food. It represents the amount of energy required to raise the temperature of one gram of water by one degree Celsius. Therefore, when we consume food, the calories in that food provide us with the energy needed for various bodily functions, such as metabolism, physical activity, and growth.

Explanation
Vitamin A is important for eyesight because it plays a crucial role in maintaining the health of the retina, which is the part of the eye responsible for detecting light and color. It helps in the production of a pigment called rhodopsin, which is necessary for proper vision in low-light conditions. Additionally, vitamin A also supports the overall health of the cornea, the clear outer layer of the eye. A deficiency in vitamin A can lead to a condition called night blindness, where it becomes difficult to see in dim light.

Explanation
The recommended daily serving for the fruit group is 2 cups. This means that individuals should aim to consume 2 cups of fruits per day in order to meet their nutritional needs. Fruits are a valuable source of essential vitamins, minerals, and dietary fiber, which are important for maintaining overall health. Consuming an adequate amount of fruits can help prevent chronic diseases and promote a balanced diet.

Explanation
Calcium is the mineral found in dairy products that helps build strong bones. Calcium is an essential nutrient for bone health and is necessary for the formation and maintenance of strong bones and teeth. It plays a crucial role in bone development and growth, especially during childhood and adolescence. Dairy products such as milk, cheese, and yogurt are rich sources of calcium, making them an important part of a balanced diet for maintaining strong bones and preventing conditions like osteoporosis.

Explanation
Anorexia is an eating disorder that involves extreme restriction of food intake and an obsession with calorie intake. People with anorexia have a distorted body image and an intense fear of gaining weight, leading them to severely limit their food intake, often to the point of starvation. This disorder is characterized by a relentless pursuit of thinness, even when individuals are significantly underweight.

Explanation
People with diabetes must carefully monitor and regulate their blood sugar levels because diabetes is a condition characterized by high blood sugar levels. Failure to manage blood sugar levels can lead to various complications such as heart disease, kidney damage, nerve damage, and vision problems. Therefore, individuals with diabetes need to regularly monitor their blood sugar levels, take medications as prescribed, follow a healthy diet, and engage in regular physical activity to keep their blood sugar levels within a target range.

Explanation
Body Mass Index (BMI) is a measure that calculates a person's weight in relation to their height. It is widely used to determine if a person's weight is healthy or not. BMI provides a numerical value that indicates whether a person is underweight, normal weight, overweight, or obese. By comparing an individual's BMI to the standard BMI ranges, healthcare professionals can assess the level of risk associated with their weight and provide appropriate recommendations or interventions. Therefore, BMI is a reliable measure to determine if a person's weight is healthy.

Explanation
A golf ball is a common sporting item that is approximately the same size as 1/4 cup of dried fruit or nuts. This comparison helps to visualize the amount of dried fruit or nuts and gives a reference point for measurement.

Explanation
A deck of cards is a guideline for portion size of meat. This comparison is often used to help individuals visualize the appropriate serving size of meat, which is typically about the size of a deck of cards. This portion size recommendation is important for maintaining a balanced diet and ensuring that one does not consume excessive amounts of meat, which can be high in saturated fat and calories.

Explanation
Vitamin C is found in oranges and is known for its immune-boosting properties. It helps prevent colds by enhancing the production of white blood cells, which are essential for fighting off infections. Additionally, vitamin C acts as an antioxidant, protecting cells from damage caused by harmful free radicals. Therefore, consuming oranges or other foods rich in vitamin C can help strengthen the immune system and reduce the risk of catching a cold.