Can green tea-like drink protect insulin cells?
In vitro comparison of various antioxidants and flavonoids from Rooibos as beta cell protectants against lipotoxicity and oxidative stress-induced cell death
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Scientists tested if parts of Rooibos tea can save insulin-producing cells from damage caused by sugar and stress.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
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A snapshot of a population at a single point in time. Can identify correlations and prevalence, but cannot determine the direction of cause and effect.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Scientists tested if parts of Rooibos tea can save insulin-producing cells from damage caused by sugar and stress.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 56 / 44
Evidence Score
A snapshot of a population at a single point in time. Can identify correlations and prevalence, but cannot determine the direction of cause and effect.
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Claims (6)
Compounds found in rooibos tea may help keep the insulin-producing cells in your pancreas safe from damage caused by too much sugar and fat, which could help prevent diabetes.
In lab-grown rat pancreatic cells under stress, a natural compound called 3-hydroxyphloretin at a tiny dose (5 micromolars) helped the cells survive better—up to double in some cases—but if you give it more, it starts killing the cells instead, so the safe dose is very narrow.
When sugar-producing cells in rats are under stress, a green tea-like drink from rooibos plants helps them survive by turning down genes that cause cell death—without turning on the body’s usual antioxidant defense system.
When scientists stressed rat pancreatic cells with harmful chemicals, adding a green tea-like extract from rooibos or one of its natural compounds helped the cells survive much better—up to nearly 70% more than stressed cells without it.
When sugar-producing cells in rats are under stress from harmful molecules, two natural compounds called aspalathin and 3-hydroxyphloretin help the cells fight back by turning on their internal defense genes and turning off a gene that makes stress worse.