Final answer:
The tolerable upper intake level (UL) is the safe limit of nutrient intake on a daily basis. Higher intake levels can have negative side effects. The UL is set to provide guidelines for safe nutrient consumption.
Step-by-step explanation:
The tolerable upper intake level (UL) is a dietary intake level that represents the safe daily limit of a nutrient. It is important to note that higher intake levels than the UL can have negative side effects on the body. The UL is set to ensure that individuals do not exceed safe levels of nutrient intake and avoid potential harm.