Folic Acid, Vitamin D and Iodine: study protocols
13 study groups took Folic Acid together with Vitamin D and Iodine. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Folic Acid
13 study groups in 10 studies say how much Folic Acid participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 250 mcg to 500 mcg, 77% of 13 study groups.
| Daily dose | Study groups |
|---|---|
| 250 mcg or less | 1 |
| 250 mcg to 500 mcg | 10 |
| 500 mcg to 1 mg | 2 |
Dose per serving from research: Vitamin D
8 study groups in 5 studies say how much Vitamin D participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 100 IU to 250 IU, 50% of 8 study groups.
| Daily dose | Study groups |
|---|---|
| 100 IU or less | 1 |
| 100 IU to 250 IU | 4 |
| 250 IU to 500 IU | 3 |
Dose per serving from research: Iodine
13 study groups in 10 studies say how much Iodine participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 100 mcg to 250 mcg, 77% of 13 study groups.
| Daily dose | Study groups |
|---|---|
| 50 mcg or less | 1 |
| 50 mcg to 100 mcg | 0 |
| 100 mcg to 250 mcg | 10 |
| 250 mcg to 500 mcg | 2 |
Commonly used together
13 of 13 study groups took Folic Acid, Vitamin D and Iodine with something else. Shown: what 3 or more different studies gave. The 10 most common of 12.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Zinc | 13 |
| Copper | 12 |
| Iron | 12 |
| Selenium | 12 |
| Vitamin A | 12 |
| Vitamin C | 12 |
| Vitamin E | 12 |
| Niacin | 10 |
| Vitamin B12 | 10 |
| Vitamin B6 | 9 |
13 study groups