The Claim
In vitro, Garcinia kola extract exhibits a lower IC50 value (0.250 mg/mL) for α-amylase inhibition compared to Newbouldia laevis extract (0.730 mg/mL) after four weeks of testing, indicating greater inhibitory potency.
What the research says
Roughly balanced
Support and challenge are close. The picture may shift as more studies come in.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Laboratory tests show that Garcinia kola extract blocks the enzyme that breaks down starch more effectively than Newbouldia laevis extract at the tested concentrations.
See the scientific wording
In vitro, Garcinia kola extract shows greater α-amylase inhibition potency (IC50 = 0.250 mg/mL) than Newbouldia laevis extract (IC50 = 0.730 mg/mL) after four weeks of testing, suggesting it may be a more effective inhibitor of starch digestion under laboratory conditions.
Plant compounds like flavonoids and tannins fit into the enzyme's active site where starch normally binds, blocking the enzyme from breaking down starch into sugar molecules.
What the research says
1 studyIn lab tests, Garcinia kola stopped the starch-digesting enzyme better than Newbouldia laevis, meaning it needs less of the extract to do the job — just like how a stronger cleaner needs less to clean a stain.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.