Source Naturals
UC-II 40 mg
Other Combinations
1 of 2 actives reach a studied dose, 1 falls short.
Dose 1 of 2 reach a studied dose
How to takeSuggested Use: 1 capsule daily on an empty stomach, preferably before bed.
- Gluten Free
- Dairy Free
- Sugar Free
How it scores
Does the dose do anything?
-
Calcium
Below the studied range0.1 g / day studies used 0.5-1.5 g · 15 studies
-
UC-II standardized Cartilage
At the studied dose40 mg / day studies used 40-960 mg · 8 studies
What it's studied for
- SurvivalA
Lower all-cause death risk
Respiratory
- Food intakeD
Eat fewer calories
Weight management
- Stroke riskB
Lower stroke risk
Cardiovascular
- Knee painB
Reduce knee pain
Pain
- StiffnessC
Reduce joint stiffness
Physical functioning
What's in it
Serving size 1 Capsule(s)
- Calcium 104 mg 10%
- UC-II standardized Cartilage 40 mg -
- Total Collagen 10 mg -
Other ingredients
A few additives worth noting in the inactive ingredients.
- Dibasic Calcium Phosphate: tablet binder
- Gelatin: capsule shell; neutral unless ethical concern
- Silica: flow agent; inert but filler
- Potassium Chloride: electrolyte stabilizer
- Magnesium Stearate: flow agent; fine in trace
Reported interactions
- Interacts with:
- Esomeprazole ·Hydrochlorothiazide ·Semaglutide ·Diuretics ·Lithium ·Ciprofloxacin ·Metformin
- Side effects:
- Hypocalcemia ·Cardiovascular events ·Kidney stones ·Constipation ·Gastrointestinal discomfort (dyspepsia, flatulence, reflux esophagitis, appetite loss) ·Skin irritation
From research databases. Not medical advice — talk to your physician.
Source Naturals
73/100Source Naturals is a transparent, quality-conscious supplement brand with public testing explanations and product disclosures, but the available materials do not establish independent certification or standout value.
- ✓ Premium ingredients
