Final answer:
The tolerable upper intake level has been established for Vitamin C and Sodium. For Sodium, it is recommended to consume less than 2,300 milligrams per day. Vitamin C's upper limit varies based on individual factors such as age and sex.
Step-by-step explanation:
The tolerable upper intake level (UL) has been established for various nutrients to indicate the highest level of daily nutrient intake that is likely to pose no risk of adverse health effects for almost all individuals in the general population. Among the options given, the tolerable upper intake level has been established for Vitamin C and Sodium. While there are no upper limits set for total protein and total carbohydrates for the general population, excessive intake of these macronutrients can lead to health issues.
For sodium, the recommendation is to consume less than 2,300 milligrams per day, and for Vitamin C, the UL varies based on age and sex.