Enter the current intake (mg/day) and the recommended intake (mg/day) into the Calculator. The calculator will evaluate the Rdi Percentage. 

Rdi Percentage Formula

RDIp  = CI / RI * 100

Variables:

  • RDIp is the Rdi Percentage (%)
  • CI is the current intake (mg/day)
  • RI is the recommended intake (mg/day)

To calculate Rdi Percentage, divide the current intake by the recommended intake amount, then multiply by 100.

How to Calculate Rdi Percentage?

The following steps outline how to calculate the Rdi Percentage.

  1. First, determine the current intake (mg/day). 
  2. Next, determine the recommended intake (mg/day). 
  3. Next, gather the formula from above = RDIp = CI / RI * 100.
  4. Finally, calculate the Rdi Percentage.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

current intake (mg/day) = 40

recommended intake (mg/day) = 134

Frequently Asked Questions (FAQ)

What is RDI and why is it important?

RDI stands for Recommended Daily Intake. It represents the daily amount of nutrients (like vitamins and minerals) that are considered sufficient to meet the requirements of most healthy individuals. It’s important because it guides people on how much of a nutrient they should aim to consume daily for good health.

How can I find the RDI for different nutrients?

The RDI for various nutrients can be found on nutritional labels, in dietary guidelines issued by health organizations, or through online resources and calculators. It’s important to note that RDI values can vary by country, age, sex, and life stage (e.g., pregnancy).

Can my nutrient needs be different from the RDI?

Yes, individual nutrient needs can vary based on several factors including age, gender, health status, physical activity level, and special conditions like pregnancy and lactation. Consulting with a healthcare provider or a dietitian is recommended for personalized advice.

Is it possible to exceed the RDI, and what are the consequences?

Yes, it is possible to exceed the RDI for some nutrients, especially when consuming high doses of supplements. Exceeding the RDI over a long period can lead to toxicity and adverse health effects. For instance, too much vitamin A can cause liver damage and too much calcium can lead to kidney stones. It’s important to stay within recommended limits unless advised otherwise by a health professional.