Vitamin A and Folic Acid: study protocols
13 study groups took Vitamin A together with Folic Acid. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Vitamin A
12 study groups in 7 studies say how much Vitamin A participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 500 mcg to 1 mg, 67% of 12 study groups.
| Daily dose | Study groups |
|---|---|
| 250 mcg to 500 mcg | 4 |
| 500 mcg to 1 mg | 8 |
Dose per serving from research: Folic Acid
13 study groups in 8 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, 54% of 13 study groups.
| Daily dose | Study groups |
|---|---|
| 100 mcg to 250 mcg | 4 |
| 250 mcg to 500 mcg | 7 |
| 500 mcg to 1 mg | 2 |
Commonly used together
12 of 13 study groups took Vitamin A and Folic Acid with something else. Shown: what 3 or more different studies gave.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Iron | 11 |
| Zinc | 9 |
| Vitamin C | 6 |
| Vitamin B12 | 5 |
| Vitamin E | 4 |
| Copper | 3 |
| Vitamin B6 | 3 |
13 study groups