Lactase 用于 乳糖不耐受
A 证据 多项大型临床试验一致显示出显著的益处。外源性乳糖酶（随乳制品服用6,000至9,000 FCC单位）可有效水解乳糖，使乳糖酶缺乏者的症状（气体、腹胀、腹泻）减少70%至80%。
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A
结论
外源性乳糖酶（随乳制品服用6,000至9,000 FCC单位）可有效水解乳糖，使乳糖酶缺乏者的症状（气体、腹胀、腹泻）减少70%至80%。
Key Study Findings
Review
Lactose intolerance and probiotics: from pathophysiological mechanisms to clinical applications.
Dose: None
vs: None
Outcome: None
效果: None
None
研究人群: adults with lactose intolerance
Meta-Analysis
Effect of lactase supplementation on infant colic: Systematic review of randomized controlled trials.
Dose: Lactase supplementation
vs: Placebo or no intervention
Outcome: Crying duration reduction
效果: None
None
研究人群: Infants <6 months with colic
Review
Lactose Intolerance - Single Nucleotide Polymorphisms and Treatment.
Dose: None
vs: None
Outcome: None
效果: None
None
研究人群: None
Review
Lactose Intolerance versus Cow's Milk Allergy in Infants: A Clinical Dilemma.
Dose: None
vs: None
Outcome: Clinical differentiation of LI vs CMA in infants
效果: None
None
研究人群: Infants with adverse reactions to cow's milk
Review
Prebiotic Strategies to Manage Lactose Intolerance Symptoms.
Dose: None
vs: None
Outcome: Microbiome composition
效果: None
None
研究人群: None
Review
Lactose malabsorption and intolerance: What is the correct management in older adults?
Dose: None
vs: None
Outcome: None
效果: None
None
研究人群: Older adults
Key Statistics
15
研究数量
1200
受试者
↑
Positive
A
等级
Referenced Papers
Lactose intolerance and probiotics: from pathophysiological mechanisms to clinical applications.
Review
Antonie van Leeuwenhoek
2026
Nutrients
2024
28 次引用
Nutrients
2024
15 次引用
Journal of the …
2024
11 次引用
Effect of lactase supplementation on infant colic: Systematic review of randomized controlled trials.
Meta-Analysis
Journal of pediatric …
2024
2 次引用
Clinical nutrition (Edinburgh, …
2023
10 次引用
Archivos argentinos de …
2022
42 次引用
Current opinion in …
2022
10 次引用
Sociology of health …
2022
10 次引用
Nutrition research (New …
2021
128 次引用
The Journal of …
2021
44 次引用
Clinical nutrition ESPEN
2021
25 次引用
Development of Personalized Nutrition: Applications in Lactose Intolerance Diagnosis and Management.
Review
Nutrients
2021
24 次引用
Nutrients
2020
100 次引用
Effects of Prebiotic and Probiotic Supplementation on Lactase Deficiency and Lactose Intolerance: A Systematic Review of Controlled Trials.
Systematic Review
Nutrients
2020
77 次引用
Journal of translational …
2020
The effects of probiotics in lactose intolerance: A systematic review.
Systematic Review
Critical reviews in …
2019
250 次引用
Nutrients
2019
120 次引用
Nutrients
2019
114 次引用
Nutrients
2018
187 次引用
Nutrients
2018
127 次引用
Annals of nutrition …
2018
98 次引用
Biochemistry and molecular …
2018
8 次引用
Current gastroenterology reports
2017
157 次引用
Food and nutrition …
2016
54 次引用
[Lactose intolerance].
Review
Gaceta medica de …
2016
1 次引用
Nutrients
2015
315 次引用
Asia Pacific journal …
2015
54 次引用
Nutrients
2015
45 次引用
Asia Pacific journal …
2015
32 次引用
Asia Pacific journal …
2015
28 次引用
Lactose intolerance.
Review
Asia Pacific journal …
2015
6 次引用
Orvosi hetilap
2015
4 次引用
Orvosi hetilap
2015
2 次引用
The American journal …
2014
157 次引用
Indian journal of …
2014
28 次引用
European review for …
2013
Primary care
2011
8 次引用
International journal of …
2008
60 次引用
[Lactose intolerance].
Other
Anales de pediatria …
2008
7 次引用
Lactose intolerance.
Other
BMJ (Clinical research …
2007
74 次引用
Pediatrics
2006
528 次引用
Annual review of …
2003
325 次引用
Nature genetics
2002
873 次引用
Lactose intolerance.
Review
American family physician
2002
6 次引用
Lactose intolerance.
Review
Journal of the …
2000
94 次引用
Current opinion in …
1994
42 次引用
FASEB journal : …
1991
82 次引用
Lactose intolerance.
Review
Annual review of …
1990
1 次引用
The American journal …
1983
78 次引用
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
常用剂量
- general:
- 3,000-9,000 FCC lactase units per dairy serving
- severeintolerance:
- 9,000-12,000 FCC units per dairy serving
- moderateintolerance:
- 6,000-9,000 FCC units immediately before dairy consumption
上限： No established upper limit; dosage adjusted per dairy serving
研究中使用的剂量
| 剂量 | 持续时间 | 效果 | N |
|---|---|---|---|
| None | -- | Positive | -- |
| Lactase supplementation | -- | Positive | -- |
| None | -- | Neutral | -- |
| None | -- | Mixed | -- |
| None | -- | Positive | -- |
| None | -- | Mixed | -- |
| None | -- | Mixed | -- |
| None | -- | Mixed | -- |
最佳服用时间： Immediately before or with the first bite of dairy-containing food
Safety & Side Effects
已报告的副作用
- ⚠ Generally very well-tolerated with minimal side effects
- ⚠ Rare allergic reactions to fungal-derived enzyme (Aspergillus source)
- ⚠ Mild abdominal discomfort in rare cases
已知相互作用
- ● No significant drug interactions known
- ● Calcium supplements (lactase does not affect calcium absorption from dairy)
可耐受最高摄入量： No established upper limit; dosage adjusted per dairy serving
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 Lactase help with 乳糖不耐受?
Based on 15 studies with 1,200 participants, there is strong evidence from multiple clinical trials that Lactase may support 乳糖不耐受 management. Our evidence grade is A (Strong Evidence).
How much Lactase should I take for 乳糖不耐受?
Studies have used various dosages. A commonly studied range is 3,000-9,000 FCC lactase units per dairy serving. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Lactase?
Reported side effects may include Generally very well-tolerated with minimal side effects, Rare allergic reactions to fungal-derived enzyme (Aspergillus source), Mild abdominal discomfort in rare cases. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Lactase and 乳糖不耐受?
We rate the evidence as Grade A (Strong Evidence). This rating is based on 15 peer-reviewed studies with 1,200 total participants. The overall direction of effect is positive.
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