Cardamom — The Metabolic Spice

Cardamom contains bioactive phenolic compounds and flavonoids that exert antioxidant and anti-inflammatory effects. It has been shown to upregulate Sirtuin-1 (SIRT1), an NAD+-dependent deacetylase involved in metabolic regulation and stress resistance. Cardamom extracts lower the expression of pro-inflammatory genes, including NF-κB, TNF-α, and IL-6, thereby mitigating systemic inflammation. Additionally, its active constituents may improve endothelial function and lipid profiles by reducing oxidative stress and modulating lipid metabolism pathways.

Multiple randomized controlled trials have investigated cardamom supplementation in humans, primarily focusing on metabolic syndrome, type 2 diabetes, and non-alcoholic fatty liver disease (NAFLD). A 2018 double-blind placebo-controlled trial found that 3 g/day of green cardamom improved biomarkers of fatty liver, including reducing inflammation and increasing Sirtuin-1 (SIRT1) levels in overweight and obese patients with NAFLD. Meta-analyses suggest cardamom consumption can significantly reduce triglyceride levels and improve specific cardiovascular metabolic biomarkers, though effects on blood pressure and glycemic control have been inconsistent across studies.

3 g/day of green cardamom powder, typically divided into two or three doses with meals, is the most studied protocol in clinical trials for metabolic and cardiovascular benefits. It is often consumed as a capsule or mixed into food or beverages.

Cardamom is generally recognized as safe when consumed in typical culinary amounts or standard supplemental doses (up to 3 g/day). High doses may cause gastrointestinal discomfort or reflux in sensitive individuals. Due to potential blood-thinning and blood-sugar-lowering effects, caution is advised for individuals on anticoagulant or antidiabetic medications. Safety during pregnancy and breastfeeding at medicinal doses is not well established.

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