Curcumin, from turmeric, is taken to calm inflammation. Evidence is strongest for lowering inflammation and easing arthritis pain and stiffness, rivaling common pain relievers with fewer stomach problems. Benefits for blood sugar, blood fats, mood, and liver are modest and less certain; brain and cancer claims stay speculative. Poor absorption makes formulation and product quality decisive. (Full Review)

Protocol

Standard Dose

500–2,000 mg/day

Curcuminoids; split twice daily given the short half-life

Absorption

Piperine or enhanced formulation

~5–20 mg piperine, or a bioavailability-enhanced product

Timing

With a fat-containing meal

Best taken with the largest fat-containing meal to aid absorption

Time to effect

Joint Pain Relief

4–8 weeks

Osteoarthritis pain and stiffness

Inflammation

4–8 weeks

Circulating inflammatory markers

Metabolic Markers

8–12 weeks

Blood sugar and lipids

Benefits

High: Reduced systemic inflammation & oxidative stress; osteoarthritis symptom relief

Medium: Improved glycemic control; improved blood lipids; reduced depressive symptoms

Low: Improved non-alcoholic fatty liver markers; faster exercise recovery

Speculative: Cognitive preservation & neuroprotection; cancer chemoprevention

Contraindications

Anticoagulant use

Active gallbladder disease or bile-duct obstruction

Known liver disease

Scheduled surgery (stop 1–2 weeks prior)

Pregnancy or breastfeeding (supplemental doses)

History of calcium-oxalate kidney stones

Key Interactions

Antidiabetic drugs (metformin, sulfonylureas, insulin)

NSAIDs (ibuprofen, naproxen, aspirin)

CYP3A4/2C9 & P-glycoprotein substrates (statins, amlodipine, tacrolimus)

Blood-thinning or glucose-lowering supplements (fish oil, ginkgo, garlic, berberine, cinnamon)

Risk & Side Effects

High: Gastrointestinal discomfort

Medium: Idiosyncratic liver injury; increased bleeding risk

Low: Reduced iron absorption; kidney stone risk

Speculative: Reduced DHT & hormonal effects

Monitoring

Marker	Target	Why
hs-CRP	< 1.0 mg/L	Primary marker of the inflammation curcumin targets
Fasting glucose	70–90 mg/dL	Tracks metabolic benefit in at-risk users
HbA1c	< 5.4%	Average blood sugar over ~3 months
Triglycerides	< 90 mg/dL	Lipid marker most responsive to curcumin
LDL cholesterol	< 100 mg/dL	Monitors cardiovascular lipid effect
ALT & AST	< 25 U/L	Safety check for rare liver injury
Ferritin & serum iron	Ferritin 50–150 ng/mL	Guards against worsening iron status

Cadence: Baseline, then at 8–12 weeks, then every 6–12 months (prompt liver check if warning symptoms arise)

Qualitative Assessment

Joint comfort and stiffness (especially in the morning)
Energy levels and general vitality
Mood and sense of well-being
Digestive comfort (to catch tolerability issues early)
Exercise recovery and next-day soreness

Curcumin for Health & Longevity

Protocol

Benefits

Risk & Side Effects

Monitoring

Qualitative Assessment