Cafestol (Coffee Diterpene · LDL-raising · Hepatoprotective · Neuroprotective)
| Compound | Cafestol |
| Chemical class | Terpenoid — Diterpene (Kaurane-type; pentacyclic diterpene alcohol) |
| CAS | 469-83-0 |
| Primary source | Coffea arabica and C. canephora (coffee beans, coffee oil) |
| Key applications | LDL-cholesterol raising (coffee oil); anti-inflammatory; hepatoprotective; neuroprotective; anticancer (preclinical) |
| Claim strength | High (LDL effect; well-characterised); Moderate (protective effects) |
| Typical form | Green coffee oil; unfiltered coffee (cafetière/French press); coffee diterpene extract |
| Buy from Herbuno |
Coffee Senna Extract Powder - Senna occidentalis | Sonamukhi → Green Coffee Extract Powder - Coffea arabica → |
Name origin: From caffeine (Latin cafea = coffee) + -ol (alcohol suffix) — named as an oil-soluble alcohol isolated from coffee. Cafestol is a pentacyclic kaurane diterpene alcohol — not structurally related to caffeine (a purine alkaloid) despite the naming. It is the primary diterpene in coffee oil, co-occurring with kahweol (which has an additional furan ring double bond). Both cafestol and kahweol are concentrated in the waxy oil fraction of coffee beans and are largely absent from filtered coffee — paper filters retain them in the filter material. Commercial and nutritional significance: Cafestol and kahweol are the most potent dietary cholesterol-raising agents known — the Thelle/Tverdal discovery in the 1980s–1990s established that unfiltered coffee (Norwegian boiled coffee, French press, Turkish coffee, espresso) raises LDL cholesterol significantly in regular drinkers, while filtered coffee does not. At 10 mg cafestol/day (achievable from 4–6 cups of French press coffee), serum LDL increases approximately 6–10%. This is the best-characterised cholesterol-raising effect of any dietary compound. Dual pharmacology: Despite its LDL-raising liability at high doses, cafestol has anti-inflammatory, hepatoprotective, neuroprotective, and anticancer properties in animal and cell models at lower doses — creating a paradoxical pharmacological profile where the bioactive compound with the most clearly established adverse dietary effect also has multiple protective biological activities. Commercial source: Green Coffee Extract and Oil from Herbuno deliver cafestol and kahweol.
Cafestol — Pharmacological Evidence
LDL cholesterol elevation — highest evidence (High): Multiple intervention RCTs and prospective cohort studies confirm cafestol as the primary coffee diterpene responsible for LDL and total cholesterol elevation in unfiltered coffee drinkers. Mechanism: cafestol activates FXR (farnesoid X receptor) and PXR (pregnane X receptor) in the small intestine, disrupting bile acid feedback regulation and increasing hepatic LDL receptor downregulation. Each 10 mg/day cafestol (approximately 5 cups French press) raises serum LDL by approximately 0.13 mmol/L (5 mg/dL) — a clinically relevant increase over months of habitual consumption. Claim strength: High.
Hepatoprotective and anti-inflammatory: At sub-cholesterolemic doses, cafestol activates Nrf2 (antioxidant response pathway) and inhibits NF-κB in hepatocyte and macrophage models. Animal studies show protection from CCl4-induced hepatotoxicity and reduction of liver fibrosis markers. A cohort study found habitual coffee consumption (with cafestol exposure from unfiltered coffee) associated with lower ALT and AST enzymes — consistent with hepatoprotection. Claim strength: Moderate.
Neuroprotective: Cafestol increases GDNF (glial cell line-derived neurotrophic factor) and NGF expression in neuronal cultures — compounds essential for dopaminergic neuron survival. In Parkinson’s disease mouse models, cafestol protects dopaminergic neurons from MPTP toxicity. Epidemiological data show habitual coffee consumption associated with 30–40% lower Parkinson’s risk; cafestol may contribute to this neuroprotection alongside caffeine’s adenosine antagonism. Claim strength: Moderate.
Coffee Senna Extract Powder - Senna occidentalis | Sonamukhi →
Green Coffee Extract Powder - Coffea arabica →
Browse Standardised Extract Powders →
Frequently Asked Questions — Cafestol
Which types of coffee have the most cafestol?
Cafestol content varies dramatically by brewing method. French press/cafetière and Turkish coffee: 6–12 mg per cup (highest). Espresso: 1–4 mg per shot (moderate — high extraction temperature but shorter contact time). Instant coffee: 0.2–0.5 mg per cup (low — processing removes most diterpenes). Paper-filtered drip coffee: <0.1 mg per cup (negligible — paper filter retains cafestol). The 6–10% LDL elevation associated with unfiltered coffee consumption in RCTs corresponds to 4–5 cups of French press daily. For cardiovascular-sensitive individuals, filtered coffee is recommended; for hepatoprotective supplement applications, concentrated coffee diterpene extract is used.
Is cafestol in espresso a cardiovascular concern?
Espresso contains moderate cafestol (1–4 mg per shot) — less than French press but more than filtered coffee. Italian population studies of heavy espresso drinkers (6–8 espressos/day) show modest LDL elevation compared to non-coffee drinkers. However, the overall cardiovascular effect of habitual coffee consumption in epidemiological studies is neutral-to-beneficial — suggesting that cafestol’s LDL-raising effect at espresso doses is offset by coffee’s cardiovascular-protective effects (antioxidants, anti-inflammatory chlorogenic acids, adenosine antagonism). The concern primarily applies to very high unfiltered coffee consumption.
Is cafestol being investigated as a cancer preventive?
Yes — cafestol’s activation of Nrf2 (inducing phase II detoxification enzymes that neutralise carcinogens) and direct antiproliferative activity in colon, prostate, and liver cancer cell lines has attracted chemopreventive research interest. The GDNF-inducing neuroprotective activity and Nrf2-mediated cytoprotection are mechanistically consistent with epidemiological observations of lower cancer risk in habitual coffee consumers. However, establishing cafestol specifically (rather than chlorogenic acids, caffeine, or other coffee constituents) as the chemopreventive agent requires controlled human studies that have not been conducted.
What is the ratio of cafestol to kahweol in coffee?
In Coffea arabica, cafestol and kahweol occur at approximately 1:1 molar ratio in the green bean diterpene fraction. In Coffea canephora (robusta), cafestol is present but kahweol is nearly absent — explaining the different diterpene pharmacology of robusta versus arabica coffee preparations. During roasting, kahweol degrades faster than cafestol — dark-roasted coffee has lower kahweol/cafestol ratio than light-roasted. Green coffee oil has the highest combined diterpene content and is the commercial source for concentrated cafestol + kahweol extracts.
Related compounds: Kahweol, Carnosic Acid, Chlorogenic Acid, Caffeine
Claim-strength scale – High = multiple human RCTs; Moderate = limited trials or strong preclinical convergence; Emerging = early-stage lab or animal data.
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