English version in progress: interface and data are in English; some explanatory text is still in Chinese.
Magnesium
镁是 300 多种酶的"开关零件"，其中包括产生能量的反应；身体靠肾脏调节它的多少。
Full ranking Dose tool Products (5,708)
Key facts
Daily Value (US FDA)420 mg
Tolerable Upper Intake Level (UL)350 mg
Median（Per day）65 mgP5 8 – P95 400
Products5,708
Sources: https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/ · FDA DV 420 mg (https://www.fda.gov/food/nutrition-facts-label/daily-value-nutrition-and-supplement-facts-labels); pre-2016 DV [400] (https://www.federalregister.gov/documents/2016/05/27/2016-11867/food-labeling-revision-of-the-nutrition-and-supplement-facts-labels); adult UL 350 mg; hard_high=3500 per serving (UL x10 or market maximum), hard_low=DV/1000
How it works：镁在身体里做什么？
- 镁主要在小肠吸收，饮食中的镁通常约 30–40% 被吸收。
- 镁是 300 多种酶系统的辅因子，参与能量生成（ATP）、蛋白质与 DNA 合成。
- 镁参与神经冲动传导、肌肉收缩和正常心律。
- 体内镁偏低时，肾脏减少镁从尿液排出。
Schematic only; positions and scale are not anatomical.
Limits and cautions：补剂来源的镁，成人 UL 为 350 mg/天（不含食物中的镁）；超量常见腹泻。
Sources：NIH ODS: Magnesium Fact Sheet for Health Professionals
Daily dose across products（mg/day）
DV 420
UL 350
2.5 mglog scale · n=5,7081,200 mg
Label data from official national databases and brand websites, as declared; not lab-verified.
Common forms
| Form | Products | Median | P5–P95 | Elemental fraction |
|---|---|---|---|---|
| Magnesium oxide | 1553 | 51 mg | 10 – 400 | 60.3% [source] |
| Magnesium citrate | 1177 | 100 mg | 7 – 500 | — |
| Magnesium glycinate | 737 | 97.2 mg | 6.48 – 500 | — |
| Magnesium malate | 315 | 100 mg | 17.9 – 280 | — |
| Magnesium aspartate | 170 | 100 mg | 16.4 – 500 | — |
| Magnesium carbonate | 159 | 100 mg | 9.8 – 340 | — |
| Magnesium chloride | 46 | 23 mg | 2.5 – 200 | — |
| Magnesium lactate | 42 | 50 mg | 7.5 – 150 | — |
| Magnesium sulfate | 34 | 30 mg | 8 – 210 | — |
| Magnesium taurate | 16 | 70 mg | 22.7 – 250 | — |
| Magnesium threonate | 11 | 48 mg | 12.6 – 2,000 | — |
Top ranked
| Rank | Brand | Product | Per day | Score |
|---|---|---|---|---|
| 1 | Nature Made | Magnesium Citrate | 250 mg | 90.0 |
| 1 | Solaray | Magnesium Potassium Asporotates | 300 mg | 90.0 |
| 3 | Vitamin World | Magnesium Citrate 250 mg | 250 mg | 88.0 |
| 4 | Natural Vitality | CALM Magnesium Glycinate Capsules | 325 mg | 85.0 |
| 4 | Natural Vitality | CALM Raspberry-Lemon Flavor | 325 mg | 85.0 |
For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.