Folic Acid and Vitamin B12: study protocols
60 study groups took Folic Acid together with Vitamin B12. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Folic Acid
60 study groups in 49 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, 33% of 60 study groups.
| Daily dose | Study groups |
|---|---|
| 100 mcg or less | 1 |
| 100 mcg to 250 mcg | 7 |
| 250 mcg to 500 mcg | 20 |
| 500 mcg to 1 mg | 17 |
| 1 mg to 2.5 mg | 6 |
| 2.5 mg to 5 mg | 7 |
| over 5 mg | 2 |
Dose per serving from research: Vitamin B12
53 study groups in 45 studies say how much Vitamin B12 participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 250 mcg to 500 mcg, 30% of 53 study groups.
| Daily dose | Study groups |
|---|---|
| 1 mcg or less | 1 |
| 1 mcg to 2.5 mcg | 4 |
| 2.5 mcg to 5 mcg | 10 |
| 5 mcg to 10 mcg | 7 |
| 10 mcg to 25 mcg | 0 |
| 25 mcg to 50 mcg | 2 |
| 50 mcg to 100 mcg | 0 |
| 100 mcg to 250 mcg | 0 |
| 250 mcg to 500 mcg | 16 |
| 500 mcg to 1 mg | 10 |
| 1 mg to 2.5 mg | 1 |
| over 2.5 mg | 2 |
Commonly used together
47 of 60 study groups took Folic Acid and Vitamin B12 with something else. Shown: what 3 or more different studies gave. The 10 most common of 14.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Vitamin B6 | 35 |
| Iron | 19 |
| Zinc | 15 |
| Vitamin A | 13 |
| Vitamin C | 12 |
| Riboflavin | 11 |
| Vitamin E | 11 |
| Vitamin D | 10 |
| Copper | 8 |
| Iodine | 8 |
60 study groups