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Forskolin

Ayurvedic herb extract that may support weight loss, fat burning, and metabolic health through cAMP activation

Scientific nameColeus forskohlii FormulaC22H34O7 Molecular weight410.5 g/mol CAS66575-29-9
70 absorption score
6 safety / 10
40 USD per month
5 documented interactions

Check it against something

Evidence level C

Forskolin with:

Compatibility score 75 out of 100
75 out of 100
Works better together Compatible. Timing differs, so follow each supplement's own window.

Check it against your whole stack →

What it does

mechanism and evidence for each claim

Fat loss and weight management support

May help reduce body fat and support weight loss efforts

Activates cAMP increasing fat breakdown and metabolism Evidence C-grade 8-12 weeks

Lean body mass preservation

May help preserve muscle mass during weight loss

cAMP activation may support protein synthesis and muscle preservation Evidence C-grade 8-16 weeks

Metabolic rate enhancement

May increase metabolic rate and energy expenditure

Activates adenylyl cyclase increasing cellular energy production Evidence C-grade 4-8 weeks

Thyroid function support

May support healthy thyroid hormone production

cAMP activation may stimulate thyroid hormone release Evidence C-grade 6-12 weeks

Cardiovascular health support

May support heart health and blood pressure

Vasodilation effects and improved cardiac contractility Evidence C-grade 4-8 weeks

Others take these for the same thing

Same goal, different mechanism — check any of them against this one

Every pair we checked

12 combinations scored by the engine
Forskolin + Creatine Monohydrate No documented interaction either way No known interaction 70
Forskolin + Vitamin D3 No documented interaction either way No known interaction 70
Forskolin + Calcium Carbonate No documented interaction either way No known interaction 70
Forskolin + Whey Protein No documented interaction either way No known interaction 70
Forskolin + Lactase No documented interaction either way No known interaction 70
Forskolin + Bovine Collagen No documented interaction either way No known interaction 70
Forskolin + DHA No documented interaction either way No known interaction 70
Forskolin + Turmeric No documented interaction either way No known interaction 70
Forskolin + Fish Oil (EPA/DHA) No documented interaction either way No known interaction 70
Forskolin + Green Tea Extract (EGCG) Enhanced fat burning and metabolic benefits Works better together 75
Forskolin + Caffeine Enhanced thermogenesis and fat burning Works better together 75
Forskolin + L-Carnitine Enhanced fat oxidation and energy production Works better together 75

Dosage

Morning with meals
Daily125-500mg
Weight loss250-500mg daily
Metabolic support250-500mg daily
Cardiovascular support125-250mg daily
Body composition250-500mg daily

When to expect it

First Effects4-6 weeks for initial metabolic and weight effects
Peak Benefits12-16 weeks for sustained weight and body composition benefits
Deficiency DevelopmentReturn to baseline metabolism and weight
Toxicity OnsetRare, mainly cardiovascular effects

How to measure it

$150-250
MarkerThyroid function, body composition, or metabolic markers
OptimalImproved metabolic markers and body composition
Deficient belowNot applicable for supplement
FrequencyMonitor thyroid and cardiovascular parameters if using long-term

What people actually reported to the FDA

CAERS, 17 reports naming it as the suspect

Most reported effects

Diarrhoea 3
Nausea 3
Vomiting 3
Hypersensitivity 2
Lip swelling 2
Named as the suspect 17 reports of 17 that mention it at all
Serious outcome 83% hospitalisation, emergency room or worse
Other Serious or Important Medical Event8
Hospitalization4
Visited Emergency Room4

Reports are voluntary and unverified — they record what someone experienced while taking something, not what the compound caused. Counts skew towards products people take a lot of, and a serious outcome is more likely to be reported than a mild one, so these are not rates. How we filter them →

What actually reaches you

The label counts the carrier, your body does not
Absorption High 70 of 100 · absorbs well relative to other forms
Delivered daily 218.8 mg
Cost per 100 mg delivered $0.61 comparative — uses the absorption score, not a measured percentage

Works better with

3 documented
+
Green Tea Extract

Enhanced fat burning and metabolic benefits

Both support fat oxidation through different pathways · level C
+
Caffeine

Enhanced thermogenesis and fat burning

Both increase cAMP levels and metabolic rate · level C
+
L Carnitine

Enhanced fat oxidation and energy production

Carnitine transports fatty acids released by forskolin · level C

What not to take with Forskolin

2 documented
!
Beta Blockers

May counteract cardiovascular effects

Beta-blockers oppose some cAMP-mediated effects · moderate significance
!
High Calorie Diet

Excess calories may overwhelm fat-burning benefits

Caloric surplus reduces effectiveness of fat loss · major significance

Medication interactions

Discuss these with a pharmacist before combining
blood-pressure-medications Moderate

May enhance blood pressure lowering effects

What to do: Monitor blood pressure closely

blood-thinners Minor

May enhance anticoagulant effects

What to do: Monitor bleeding parameters

heart-medications Moderate

May affect heart rate and rhythm

What to do: Consult cardiologist before use

Available forms

bioavailability compared
ForsLean (Standardized 10% Forskolin) 80
Standardized Forskolin Extract (20% Forskolin) 75
Coleus Root Extract 60
Whole Coleus Root Powder 40

ForsLean (Standardized 10% Forskolin): Patented extract, Standardized, Research backed, Quality controlled

Standardized Forskolin Extract (20% Forskolin): Higher potency, Good standardization, More affordable, Widely available

Coleus Root Extract: Traditional form, Complete spectrum, Natural, Lower cost

Whole Coleus Root Powder: Natural form, Traditional use, Lowest cost, Complete plant

Food sources

before you supplement
Fresh coleus leaves Traditional preparation, very low forskolin · 20
Forskolin extract supplements 125-500mg per capsule · 70-80
Coleus root tea Traditional preparation, low potency · 25
Not found in common foods Supplementation required for therapeutic doses · N/A

Too little

deficiency signs
  • Not essential - but symptoms addressed by forskolin:
  • Slow metabolism and weight gain
  • Difficulty losing fat and poor body composition
  • Low energy and sluggish metabolism
  • Poor thyroid function
  • Cardiovascular issues
  • Difficulty breaking weight loss plateaus

Too much

toxicity signs
  • Generally safe but potential concerns:
  • Low blood pressure and dizziness
  • Rapid heart rate and palpitations
  • Possible increased bleeding
  • Headaches with high doses

Who benefits most

weight-loss-fat-burning

May support fat loss and weight management efforts

250-500mg daily
body-composition-muscle-preservation

May help preserve lean mass during weight loss

250-500mg daily
slow-metabolism-thyroid

May support metabolic rate and thyroid function

250-500mg daily
cardiovascular-support

Traditional use for heart health support

125-250mg daily
plateau-weight-loss

May help break through weight loss plateaus

250-500mg daily

Where to buy it

compare forms first

Look for Forskolin at 125-500mg per serving. The form that matters here is ForsLean (Standardized 10% Forskolin).

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What else affects it

Beyond other supplements
!
High calorie diet

Excess calories may overwhelm fat-burning benefits

Caloric surplus reduces effectiveness of fat loss

How it works

  • Activates adenylyl cyclase increasing intracellular cAMP levels
  • cAMP activation stimulates hormone-sensitive lipase for fat breakdown
  • May increase thyroid hormone production and release
  • Enhances protein kinase A activity affecting metabolism
  • Vasodilation effects may improve circulation
  • May increase thermogenesis and energy expenditure

Key findings

what the evidence supports
  • Limited evidence for weight loss and fat burning
  • Some promising studies on body composition
  • Generally safe but cardiovascular effects need monitoring
  • More research needed for definitive weight loss claims

Sources: NIH Examine.com · data reviewed 2026-08-02

Compiled by Denis, who maintains this database and holds no medical qualification — every figure here is sourced or derived, never asserted. How we calculate it →

Common questions

What are the benefits of Forskolin?

Documented effects: Fat loss and weight management support; Lean body mass preservation; Metabolic rate enhancement; Thyroid function support. May help reduce body fat and support weight loss efforts

How much Forskolin should you take per day?

The common daily range is 125-500mg. By goal — weight loss: 250-500mg daily; metabolic support: 250-500mg daily; cardiovascular support: 125-250mg daily; body composition: 250-500mg daily.

When is the best time to take Forskolin?

Morning with meals. First effects are typically reported within 4-6 weeks for initial metabolic and weight effects.

What are the side effects of Forskolin?

At excessive doses: Generally safe but potential concerns:, Low blood pressure and dizziness, Rapid heart rate and palpitations, Possible increased bleeding, Headaches with high doses. Safety rating at normal doses is 6 out of 10.

What should you not take with Forskolin?

Separate it from Beta Blockers, High Calorie Diet by two to four hours. May counteract cardiovascular effects

Does Forskolin interact with medications?

Documented interactions with blood-pressure-medications, blood-thinners, heart-medications. Discuss these with a pharmacist before combining.

How do you know if you need Forskolin?

The marker is Thyroid function, body composition, or metabolic markers, optimal range Improved metabolic markers and body composition. Common deficiency signs: Not essential - but symptoms addressed by forskolin:, Slow metabolism and weight gain, Difficulty losing fat and poor body composition, Low energy and sluggish metabolism.

Taken for