Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Omega-3 Calculator
Find your daily recommended omega-3 fatty acid intake based on sex. Use it to assess whether your diet or supplementation meets the adequate intake (AI) for heart and brain health.
Daily Omega-3 Requirement
1.6 grams
At 1.6 g/day this matches the NIH Adequate Intake for adult men, roughly 45% higher than the female target of 1.1 g. Two oily-fish meals per week typically meets it.
Thresholds reflect the U.S. NIH/Institute of Medicine Adequate Intake (AI) for ALA omega-3: 1.6 g/day for men and 1.1 g/day for women.
Vitamin D Calculator
Estimates your recommended daily Vitamin D intake in IU based on your age and level of daily sun exposure. Use it to identify whether you need a supplement and at what dose.
Key differences
| Omega-3 Calculator | Vitamin D Calculator | |
|---|---|---|
| Category | Nutrition | Nutrition |
| Inputs required | 1 | 2 |
| Result | Daily Omega-3 Requirement (grams) | Vitamin D Requirement (IU) |
| What it does | Find your daily recommended omega-3 fatty acid intake based on sex. Use it to assess whether your diet or supplementation meets the adequate intake (AI) for heart and brain health. | Estimates your recommended daily Vitamin D intake in IU based on your age and level of daily sun exposure. Use it to identify whether you need a supplement and at what dose. |