Answer:
The correct option is;
Insufficient data exist to establish a value
Step-by-step explanation:
The upper intake level is the maximum amount of the nutrient that can be taken without the likelihood of harmful side effects on the health of an individual within the population. Taking nutrients above the stipulated upper intake level is likely to lead exposure to risk harmful side effects
Upper intake level have not been developed, however, for many nutrients due to lack adequate data as such it has been advised to apply extra caution to avoid adverse effects caused by excessive intake of such nutrients.