Aloe Vera (Inner Leaf)
Commonly used for
Digestive Health
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The cheapest product is usually low quality, but more expensive doesn’t always mean better.
What is it? / Overview
Inner-leaf gel contains polysaccharides (acemannan, glucomannan) with proposed anti-inflammatory and prebiotic effects on gut microbiota, but despite that plausible mechanism, purified inner-leaf gel has not consistently outperformed placebo for IBS symptoms in controlled trials -- and this is a genuinely different product from aloe latex/whole-leaf, a stimulant laxative with hepatotoxicity case reports and an NTP rodent carcinogenicity signal.
How is it used? / Administration
Form: Aloe vera (Aloe barbadensis) inner-leaf gel/extract, decolorized/purified and low-anthraquinone -- explicitly distinct from aloe latex/whole-leaf, a stimulant laxative
Typical dose studied: ~500 mg/day inner-leaf extract, often combined with inulin in trials
Timing: Daily with water
Ships trigger-empty -- searchable but the evidence for the purified inner-leaf product doesn't clear the bar for an active recommendation. This entry is specifically the decolorized/purified inner-leaf gel, not whole-leaf or latex aloe, which is a distinct and higher-risk product.
How well does it work? / Evidence
? Emerging / limited evidence
Who should avoid it?
Avoid with: Breastfeeding; Crohn's disease; Ulcerative colitis; Type 2 diabetes mellitus
Interacts with: Digoxin, diuretics, corticosteroids -- whole-leaf/latex forms cause potassium loss, raising risk with these; Antidiabetic agents -- theoretical additive glucose-lowering
Already taking it? Controlled trials of purified inner-leaf gel mostly show no benefit over placebo for IBS symptoms -- reasonable to continue if genuinely helping, but don't expect it to outperform placebo based on the evidence.
Research & references
Ahluwalia B et al. (2020). Randomized clinical trial: Effects of Aloe barbadensis Mill. extract on symptoms, fecal microbiota and fecal metabolite profiles in patients with irritable bowel syndrome. Neurogastroenterology and Motility. Dimidi E, Whelan K (2020). Food supplements and diet as treatment options in irritable bowel syndrome. Neurogastroenterology and Motility. Meyer A et al. (2026). Systematic Review and Meta-Analysis: Plant-Based Therapy for Irritable Bowel Syndrome. Phytotherapy Research.
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