Folic Acid, Zinc, Vitamin C and Niacin: study protocols
11 study groups took Folic Acid together with Zinc, Vitamin C and Niacin. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Folic Acid
11 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, 91% of 11 study groups.
| Daily dose | Study groups |
|---|---|
| 100 mcg or less | 1 |
| 100 mcg to 250 mcg | 0 |
| 250 mcg to 500 mcg | 10 |
Dose per serving from research: Zinc
11 study groups in 8 studies say how much Zinc participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 10 mg to 25 mg, 55% of 11 study groups.
| Daily dose | Study groups |
|---|---|
| 5 mg or less | 1 |
| 5 mg to 10 mg | 1 |
| 10 mg to 25 mg | 6 |
| 25 mg to 50 mg | 3 |
Dose per serving from research: Vitamin C
10 study groups in 7 studies say how much Vitamin C participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 50 mg to 100 mg, 60% of 10 study groups.
| Daily dose | Study groups |
|---|---|
| 25 mg or less | 1 |
| 25 mg to 50 mg | 1 |
| 50 mg to 100 mg | 6 |
| 100 mg to 250 mg | 2 |
Dose per serving from research: Niacin
11 study groups in 8 studies say how much Niacin participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 10 mg to 25 mg, 73% of 11 study groups.
| Daily dose | Study groups |
|---|---|
| 5 mg or less | 1 |
| 5 mg to 10 mg | 0 |
| 10 mg to 25 mg | 8 |
| 25 mg to 50 mg | 2 |
Commonly used together
11 of 11 study groups took Folic Acid, Zinc, Vitamin C and Niacin with something else. Shown: what 3 or more different studies gave. The 10 most common of 11.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Copper | 11 |
| Vitamin A | 11 |
| Vitamin D | 11 |
| Vitamin E | 11 |
| Iodine | 10 |
| Iron | 10 |
| Selenium | 10 |
| Vitamin B12 | 8 |
| Vitamin B6 | 8 |
| Riboflavin | 7 |
11 study groups