Thiamine, Niacin and Riboflavin: study protocols
5 study groups took Thiamine together with Niacin and Riboflavin. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Thiamine
5 study groups in 5 studies say how much Thiamine participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 1 mg to 2.5 mg, 40% of 5 study groups.
| Daily dose | Study groups |
|---|---|
| 500 mcg or less | 1 |
| 500 mcg to 1 mg | 0 |
| 1 mg to 2.5 mg | 2 |
| 2.5 mg to 5 mg | 0 |
| 5 mg to 10 mg | 1 |
| 10 mg to 25 mg | 0 |
| 25 mg to 50 mg | 1 |
Dose per serving from research: Niacin
5 study groups in 5 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 and 25 mg to 50 mg, 40% of 5 study groups each.
| Daily dose | Study groups |
|---|---|
| 5 mg to 10 mg | 1 |
| 10 mg to 25 mg | 2 |
| 25 mg to 50 mg | 2 |
Dose per serving from research: Riboflavin
5 study groups in 5 studies say how much Riboflavin participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 1 mg to 2.5 mg, 40% of 5 study groups.
| Daily dose | Study groups |
|---|---|
| 500 mcg or less | 1 |
| 500 mcg to 1 mg | 0 |
| 1 mg to 2.5 mg | 2 |
| 2.5 mg to 5 mg | 1 |
| 5 mg to 10 mg | 0 |
| 10 mg to 25 mg | 0 |
| 25 mg to 50 mg | 1 |
Commonly used together
5 of 5 study groups took Thiamine, Niacin and Riboflavin with something else. Shown: what 3 or more different studies gave.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Copper | 3 |
| Iron | 3 |
| Vitamin A | 3 |
| Vitamin B12 | 3 |
| Vitamin B6 | 3 |
| Vitamin E | 3 |
| Zinc | 3 |
5 study groups
| Study | |||||
|---|---|---|---|---|---|
| Effects of multimicronutrient supplementation on helminth reinfection: a randomized, controlled trial in Kenyan schoolchildren 2003 · multimicronutrient supplementation · Schoolchildren in Nyanza Province, Kenya; age and sex not specified | 1.4 mg | 16 mg | 1.6 mg | 335 days | — |
| Effects of maternal micronutrient supplementation on fetal loss and infant mortality: a cluster-randomized trial in Nepal 2003 · Multiple micronutrients · Pregnant women in rural Nepal | 1.6 mg | 20 mg | 1.8 mg | — | — |
| Effects of vitamin-B complex supplementation on periodontal wound healing 2005 · Vit-B · Adults with generalized moderate to severe chronic periodontitis undergoing access flap surgery; ages not reported; 13 males and 17 females enrolled across the study | 50 mg | 50 mg | 50 mg | 30 days | — |
| Daily supplementation of a multiple micronutrient powder improves folate but not thiamine, riboflavin, or vitamin B(12) status among young Laotian children: a randomized controlled trial 2022 · micronutrient powder group (MNP) · Children aged 6–23 months in rural Lao PDR; no disease-based selection, with high prevalence of undernutrition and micronutrient deficiencies | 500 mcg | 6 mg | 500 mcg | 36 weeks | 130 |
| Effects of supplementation with low-dose group B vitamins on clinical and biochemical parameters in critically ill patients with COVID-19: a randomized clinical trial 2024 · intervention group · Critically ill patients with COVID-19 | 10 mg | 40 mg | 4 mg | 2 weeks | 40 |