Questions: An example of an essential nutrient is fiber folate creatine cholesterol glucose

The answer is folate.

Explanation for each option:

1. Fiber: While fiber is important for digestive health, it is not classified as an essential nutrient because the body can function without it, although not optimally.
2. Folate: Folate, also known as vitamin B9, is an essential nutrient because the body cannot synthesize it, and it must be obtained through diet. It is crucial for DNA synthesis, repair, and methylation, as well as for cell division and growth.
3. Creatine: Creatine is not considered an essential nutrient because the body can synthesize it from amino acids.
4. Cholesterol: Cholesterol is not an essential nutrient because the body can produce it endogenously.
5. Glucose: Glucose is a vital energy source, but it is not classified as an essential nutrient because the body can produce it from other substrates through gluconeogenesis.

Summary: Folate is the essential nutrient among the options provided because it must be obtained from the diet and is crucial for various bodily functions.