Does cinnamon help with cholesterol? What the research does and doesn't show

The evidence doesn't support cinnamon as a cholesterol treatment, and the two largest meta-analyses on the topic don't even agree with each other on total cholesterol. Both come from people with type 2 diabetes or PCOS, at gram-scale cinnamon doses — not a healthy adult population, and not a dose most capsule servings actually deliver.

What the evidence doesn't support

It doesn't support cinnamon lowering total cholesterol reliably. A 2023 dose-response meta-analysis of 15 randomized trials in people with type 2 diabetes found no significant effect on total cholesterol, alongside reductions in LDL and triglycerides and an increase in HDL. A separate 2024 meta-analysis of 12 randomized trials in women with PCOS found the opposite on the headline number — a statistically significant reduction in total cholesterol, alongside LDL — with substantial variation across the trials it pooled. Two reviews looking at overlapping questions reached different conclusions on the same marker, which is itself part of the honest answer: cinnamon's effect on cholesterol, if real, isn't consistent enough across trials to call established. Neither population is a healthy adult without an existing condition, and cinnamon is not a treatment for high cholesterol in either group.

What the trials found

The 2023 dose-response meta-analysis pooled 15 randomized controlled trials in people with type 2 diabetes and found cinnamon supplementation associated with a reduction in triglycerides (mean difference -7.31 mg/dL) and LDL cholesterol (-6.78 mg/dL), and an increase in HDL cholesterol (+1.53 mg/dL) — but no significant change in total cholesterol or fasting blood glucose across the full dataset, though a subgroup using 1,200 mg a day or less did show a glucose effect. The analysis found the size of the LDL and triglyceride changes depended on dose, without settling on one specific effective amount.

The 2024 meta-analysis pooled 12 randomized controlled trials in women with polycystic ovary syndrome (PCOS) and found a reduction in total cholesterol (mean difference -11.12 mg/dL) and LDL cholesterol (-11.11 mg/dL), alongside a small reduction in body weight and improved insulin resistance. The authors reported substantial heterogeneity — meaning the individual trials varied a lot in how big an effect they found — and called for larger, more standardized studies before drawing a firm conclusion.

Read together, both reviews describe cinnamon research in people who already have a metabolic condition, at doses generally in the 1 to 6 gram a day range of ground bark (see cinnamon dosage), with LDL and triglycerides showing the more consistent direction of change and total cholesterol itself disagreeing between reviews.

Questions people ask

Does cinnamon lower cholesterol?

The research is mixed. Two meta-analyses in people with diabetes or PCOS found reductions in LDL and triglycerides; they disagree on whether total cholesterol itself moves. It isn't established as reliable, and it isn't a substitute for cholesterol medication or monitoring.

How much cinnamon should I take for cholesterol?

There's no dose established specifically for cholesterol. The broader trial literature generally uses 1 to 6 grams of ground bark a day, and the studies above didn't isolate one effective amount for the lipid changes they measured — see cinnamon dosage.

Is cinnamon good for high cholesterol?

High cholesterol is a medical condition that needs a doctor's guidance and, often, medication. The research above describes average changes in specific patient populations, not a basis for using cinnamon in place of either.

When to talk to a doctor

High cholesterol is a medical condition that needs a doctor's guidance, not a supplement search. Cinnamon is not a treatment for it, and nothing in the research above supports using it as a substitute for prescribed medication or lipid monitoring. If you're considering a gram-scale cassia cinnamon dose anywhere near what these trials used, mention it to a doctor — cassia's coumarin content sets its own separate safety ceiling, unrelated to any cholesterol finding (see cinnamon dosage and who should not take cinnamon).

Related reading: cinnamon benefits: what the research does and doesn't show, cinnamon dosage, and does cinnamon help with blood pressure?.