Meta-analysis of 27 RCTs (n=1,652) found zinc supplementation significantly reduced body weight (0.63 kg), BMI, waist circumference, and HOMA-IR. Separate meta-analysis found significant reductions in fasting glucose, HbA1c, and insulin. Effects are strongest in deficient and obese individuals.
Meta-analysis of 27 RCTs (n=1,652) found zinc supplementation significantly reduced body weight (0.63 kg), BMI, waist circumference, and HOMA-IR. Separate meta-analysis found significant reductions in fasting glucose, HbA1c, and insulin. Effects are strongest in deficient and obese individuals.
Key Statistics
27
研究数量
1652
受试者
↑
Positive
B
等级
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
常用剂量
general:
8-11 mg/day (RDA)
postbariatric:
16-22 mg/day
metabolicsupport:
15-30 mg/day
上限: 40 mg/day (long-term); higher doses may cause copper depletion
最佳服用时间: With meals to minimize nausea; avoid taking with iron or calcium simultaneously
Safety & Side Effects
已报告的副作用
⚠
Nausea
⚠
Vomiting (on empty stomach)
⚠
Copper depletion (long-term high dose)
⚠
Metallic taste
已知相互作用
●
Antibiotics (reduced absorption — take 2 hours apart)
●
Penicillamine (reduced absorption)
●
Iron supplements (competitive absorption)
●
Calcium supplements (competitive absorption)
可耐受最高摄入量: 40 mg/day (long-term); higher doses may cause copper depletion
在开始服用任何补充剂之前,请务必咨询您的医疗保健提供者。
Frequently Asked Questions
Does Zinc help with Insulin Resistance?
Based on 27 studies with 1,652 participants, there is moderate evidence from clinical studies that Zinc may support Insulin Resistance management. Our evidence grade is B (Good Evidence).
How much Zinc should I take for Insulin Resistance?
Studies have used various dosages. A commonly studied range is 8-11 mg/day (RDA). Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Zinc?
Reported side effects may include Nausea, Vomiting (on empty stomach), Copper depletion (long-term high dose), Metallic taste. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Zinc and Insulin Resistance?
We rate the evidence as Grade B (Good Evidence). This rating is based on 27 peer-reviewed studies with 1,652 total participants. The overall direction of effect is positive.