English version in progress: interface and data are in English; some explanatory text is still in Chinese.
Zinc
锌是大约 100 种酶工作所需的金属；免疫细胞和组织修复都要用到这些酶。
Full ranking Dose tool Products (5,642)
Key facts
Daily Value (US FDA)11 mg
Tolerable Upper Intake Level (UL)40 mg
Median（Per day）8 mgP5 1.1 – P95 32
Products5,642
Sources: https://ods.od.nih.gov/factsheets/Zinc-HealthProfessional/ · FDA DV 11 mg (https://www.fda.gov/food/nutrition-facts-label/daily-value-nutrition-and-supplement-facts-labels); pre-2016 DV [15] (https://www.federalregister.gov/documents/2016/05/27/2016-11867/food-labeling-revision-of-the-nutrition-and-supplement-facts-labels); adult UL 40 mg; hard_high=400 per serving (UL x10 or market maximum), hard_low=DV/1000
How it works：锌为什么和免疫、伤口愈合有关？
- 锌在小肠吸收；植酸（谷物、豆类）会降低吸收。
- 锌参与约 100 种酶的催化活性，也参与蛋白质和 DNA 合成。
- 锌参与免疫功能和伤口愈合。
Schematic only; positions and scale are not anatomical.
Limits and cautions：成人 UL 为 40 mg/天；长期高剂量锌会减少铜吸收，可能导致铜缺乏。
Daily dose across products（mg/day）
DV 11
UL 40
0.38 mglog scale · n=5,642105 mg
Label data from official national databases and brand websites, as declared; not lab-verified.
Common forms
| Form | Products | Median | P5–P95 | Elemental fraction |
|---|---|---|---|---|
| Zinc citrate | 1223 | 7.5 mg | 1 – 35 | 32.1% [source] |
| Zinc oxide | 918 | 10 mg | 1 – 30 | 80.3% [source] |
| Zinc gluconate | 635 | 5.3 mg | 0.99 – 40 | 14.3% [source] |
| Zinc bisglycinate | 535 | 10 mg | 2.5 – 25 | — |
| Zinc picolinate | 496 | 15 mg | 2.5 – 50 | 21.1% [source] |
| Zinc sulfate | 282 | 7.5 mg | 1.1 – 20 | — |
| Zinc aspartate | 48 | 15 mg | 3 – 30 | — |
| Zinc carnosine | 20 | 74 mg | 8 – 75 | — |
| Zinc acetate | 10 | 5 mg | 1.85 – 60 | — |
Top ranked
| Rank | Brand | Product | Per day | Score |
|---|---|---|---|---|
| 1 | GNC | Ultra Zinc Lozenges Natural Orange Flavor | 20 mg | 90.0 |
| 1 | Metagenics | Zinc A.G. | 40 mg | 90.0 |
| 1 | Metagenics | Zinc Drink | 15 mg | 90.0 |
| 1 | XYMOGEN | Zinc Glycinate | 20 mg | 90.0 |
| 1 | Bulletproof | Zinc with Copper | 15 mg | 90.0 |
For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.