Folic Acid, Vitamin D, Iodine, Zinc and Vitamin B6: study protocols
9 study groups took Folic Acid together with Vitamin D, Iodine, Zinc and Vitamin B6. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Folic Acid
9 study groups in 7 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, 78% of 9 study groups.
| Daily dose | Study groups |
|---|---|
| 100 mcg or less | 1 |
| 100 mcg to 250 mcg | 0 |
| 250 mcg to 500 mcg | 7 |
| 500 mcg to 1 mg | 1 |
Dose per serving from research: Vitamin D
6 study groups in 4 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, 67% of 6 study groups.
| Daily dose | Study groups |
|---|---|
| 100 IU or less | 1 |
| 100 IU to 250 IU | 4 |
| 250 IU to 500 IU | 1 |
Dose per serving from research: Iodine
9 study groups in 7 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, 89% of 9 study groups.
| Daily dose | Study groups |
|---|---|
| 50 mcg or less | 1 |
| 50 mcg to 100 mcg | 0 |
| 100 mcg to 250 mcg | 8 |
Dose per serving from research: Zinc
9 study groups in 7 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, 67% of 9 study groups.
| Daily dose | Study groups |
|---|---|
| 5 mg or less | 1 |
| 5 mg to 10 mg | 2 |
| 10 mg to 25 mg | 6 |
Dose per serving from research: Vitamin B6
9 study groups in 7 studies say how much Vitamin B6 participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 1 mg to 2.5 mg, 78% of 9 study groups.
| Daily dose | Study groups |
|---|---|
| 500 mcg or less | 1 |
| 500 mcg to 1 mg | 0 |
| 1 mg to 2.5 mg | 7 |
| over 2.5 mg | 1 |
Commonly used together
9 of 9 study groups took Folic Acid, Vitamin D, Iodine, Zinc and Vitamin B6 with something else. Shown: what 3 or more different studies gave.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Vitamin B12 | 9 |
| Copper | 8 |
| Iron | 8 |
| Selenium | 8 |
| Vitamin A | 8 |
| Vitamin C | 8 |
| Vitamin E | 8 |
| Niacin | 7 |
| Riboflavin | 5 |
9 study groups