Zinc: study protocols
168 study groups say how much Zinc participants took a day. These are the doses the studies gave. They are not a recommendation.
Dose per serving from products
25,596 products in our catalogue print how much Zinc a serving holds.
Most common: 10 mg to 25 mg, 35% of 25,596 products.
| Dose per serving | Products |
|---|---|
| 500 mcg or less | 815 |
| 500 mcg to 1 mg | 805 |
| 1 mg to 2.5 mg | 2,336 |
| 2.5 mg to 5 mg | 4,476 |
| 5 mg to 10 mg | 5,655 |
| 10 mg to 25 mg | 8,854 |
| 25 mg to 50 mg | 2,231 |
| over 50 mg | 424 |
Dose per serving from research
163 study groups in 100 studies say how much Zinc participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 5 mg to 10 mg, 35% of 163 study groups.
| Daily dose | Study groups |
|---|---|
| 2.5 mg to 5 mg | 27 |
| 5 mg to 10 mg | 57 |
| 10 mg to 25 mg | 47 |
| 25 mg to 50 mg | 13 |
| 50 mg to 100 mg | 16 |
| over 100 mg | 3 |
Commonly used together
92 of 168 study groups took Zinc with something else. Shown: what 3 or more different studies gave. The 10 most common of 19.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Iron | 41 |
| Vitamin C | 34 |
| Vitamin A | 29 |
| Vitamin E | 26 |
| Copper | 22 |
| Beta-Carotene | 16 |
| Folic Acid | 16 |
| Selenium | 15 |
| Vitamin B12 | 9 |
| Riboflavin | 8 |
168 study groups
| Study | |||
|---|---|---|---|
| Vitamin A and Zinc Supplementation Among Pregnant Women to Prevent Placental Malaria: A Randomized, Double-Blind, Placebo-Controlled Trial in Tanzania 2017 · zinc group · Pregnant women in their first trimester, primigravid or secundigravid, HIV-negative | 25 mg | — | 625 |
| The effect of zinc supplementation on pregnancy outcomes: a double-blind, randomised controlled trial, Egypt 2015 · Zn alone group · Pregnant women aged 20–45 years with low serum zinc for gestational age | 30 mg | — | 225 |
| Effect of antenatal zinc supplementation on impetigo in infants in Bangladesh 2012 · zinc group · Pregnant Bangladeshi women whose infants were followed up to 6 months of age | 30 mg | — | 199 |
| Simultaneous zinc and vitamin A supplementation in Bangladeshi children: randomised double blind controlled trial 2001 · zinc · Children aged 12–35 months living in urban slums of Dhaka, Bangladesh | 20 mg | 2 weeks | — |
| Zinc for severe pneumonia in very young children: double-blind placebo-controlled trial 2004 · elemental zinc · Children aged 2–23 months with severe pneumonia | 20 mg | — | — |
| The effect of zinc supplementation on pregnancy outcome 1995 · zinc supplement group · Pregnant African-American women with relatively low plasma zinc concentrations, randomized at 19 weeks' gestational age; otherwise healthy | 25 mg | — | — |
| Effect of weekly zinc supplements on incidence of pneumonia and diarrhoea in children younger than 2 years in an urban, low-income population in Bangladesh: randomised controlled trial 2005 · zinc · Children aged 60 days to 12 months in a poor, urban population in Bangladesh | 10 mg | 1 year | 809 |
| Zinc as adjunct treatment in infants aged between 7 and 120 days with probable serious bacterial infection: a randomised, double-blind, placebo-controlled trial 2012 · zinc · Infants aged 7–120 days with probable serious bacterial infection | 10 mg | — | 352 |
| Effect of prenatal zinc supplementation on birthweight 2009 · Iron-zinc group · Pregnant women recruited by 16 weeks’ gestation in Ghana; age range 16–44 years; no stated diagnosed condition, with women taking other zinc supplements or with severe anaemia excluded. | 20 mg | — | 299 |
| Zinc supplementation reduces the incidence of acute lower respiratory infections in infants and preschool children: a double-blind, controlled trial 1998 · zinc · Children aged 6 to 35 months | 10 mg | 180 days | 298 |