Guide
How much artichoke extract should you take a day?
There's no single agreed dose for artichoke extract. Here's the range trials have actually used, and how to compare it to a label.
Human trials of artichoke leaf extract have used anywhere from 320 mg to 1,920 mg a day, and commercial capsules on the market mostly fall in the 200–600 mg range per capsule. There's no single dose backed by the research as "the" amount — trials tested different doses for different purposes, and none of them are dose-matched to any specific product on the shelf.
What the trials actually used
| Dose | Duration | What was measured |
|---|---|---|
| 320 or 640 mg/day | 2 months | Self-reported digestive symptoms, open-label (no placebo group) |
| 1,920 mg/day (2×320 mg, 3x daily) | 6 weeks | Functional dyspepsia symptom scores, placebo-controlled |
| 600 mg/day | 2 months | Liver enzymes in adults with diagnosed fatty liver disease, placebo-controlled |
| 1,800 mg/day | 12 weeks | Blood glucose, blood pressure, lipids and insulin resistance in metabolic syndrome, placebo-controlled |
Those are the amounts used in randomized or open-label trials that reported a specific dose; a systematic review of cholesterol trials didn't report a single consistent dose across the studies it pooled. Notice how far apart these numbers are — 1,800–1,920 mg sits nearly six times higher than 320 mg — which is one reason a single "recommended dose" for artichoke extract doesn't really exist across the research.
What's on the label vs. what was studied
Most commercial capsules list somewhere between 200 mg and 600 mg of extract per capsule, often standardized to a stated percentage of cynarin or chlorogenic acid — though not every brand discloses that percentage, and the trials above didn't always report it either. A capsule dosed at 300 mg once daily delivers roughly a sixth of the 1,920 mg dose tested for dyspepsia and half the 600 mg dose tested for liver enzymes. Reading the label's "serving size" and comparing it against the table above is the only way to know where a given product sits relative to what was actually tested — see how to choose a good artichoke extract for what else to check.
Is there an upper limit?
No established upper limit exists for artichoke leaf extract. The highest dose in the trials above, 1,920 mg a day, ran for six weeks without reported safety concerns beyond the usual mild digestive complaints described in artichoke extract side effects. That doesn't mean higher doses are automatically fine indefinitely — none of these trials ran longer than four months, so there's no long-term safety data at any dose.
Splitting the dose
The dyspepsia trial that used 1,920 mg a day split it into three doses (two 320 mg capsules, three times daily); the lower-dose open-label study gave 320 or 640 mg once daily. Nothing in either study isolates whether splitting the dose changes the outcome versus taking it all at once — they simply used different schedules. See when to take artichoke extract for what the trials do and don't say about timing.
Questions people ask
How much artichoke extract should I take per day?
There's no single dose established by research. Trials have tested amounts from 320 mg to 1,920 mg a day for different purposes; check your product's label directions and compare the amount to the table above.
How much artichoke extract is too much?
No trial has established an upper limit, and none has tested a dose above 1,920 mg a day. That's a gap in the research, not a green light for taking more than a label directs.
How much artichoke extract should I take for liver support?
The trial that measured liver enzyme changes used 600 mg a day in adults already diagnosed with fatty liver disease under medical monitoring — a specific, diseased population, not a general dosing recommendation. Whether that effect holds up as real benefit is answered in artichoke extract benefits: what the research does and doesn't show, not here.
How often should you take artichoke extract?
Trials have used both a single daily dose and doses split across three times a day; neither schedule has been shown to work better than the other. Follow whatever schedule your product's label directs.
Sources
- Efficacy of artichoke leaf extract in the treatment of patients with functional dyspepsia: a six-week placebo-controlled, double-blind, multicentre trial A 6-week placebo-controlled trial found 1,920 mg of artichoke extract a day eased functional dyspepsia symptoms more than placebo.
- Artichoke leaf extract reduces mild dyspepsia in an open study An open-label, uncontrolled study tested 320 mg and 640 mg once-daily doses of artichoke extract over 2 months.
- Efficacy of artichoke leaf extract in non-alcoholic fatty liver disease: A pilot double-blind randomized controlled trial A placebo-controlled trial found 600 mg of artichoke extract a day improved liver enzyme levels over 2 months in adults already diagnosed with fatty liver disease.
- TCF7L2-rs7903146 polymorphism modulates the effect of artichoke leaf extract supplementation on insulin resistance in metabolic syndrome: a randomized, double-blind, placebo-controlled trial A 12-week, 1,800 mg/day trial in adults with metabolic syndrome found no overall change in blood glucose, blood pressure or lipids; an insulin-resistance effect showed up only in one genetic subgroup.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.