MSM by Sundown Naturals is a joint and bone support supplement containing 500 mg of Methylsulfonylmethane (MSM) per capsule. MSM is commonly used to support joint comfort and mobility, with research often suggesting daily dosages ranging from 1,000 mg to 6,000 mg for potential benefits. The 500 mg dosage in this product is generally considered underdosed when compared to clinical studies on MSM. This product received an N+ Score of 46 and an F grade, placing it in the below-average tier, largely due to the insufficient dosage. It may be considered by individuals seeking a low dose of MSM, but higher dosages are typically explored for more pronounced effects.
About This Product
MSM by Sundown Naturals is a joint & bone supplement containing 1 active ingredients. It has earned an N+ Score of 46/100 (Grade F).
N+ Score Breakdown
Are key ingredients present at clinically effective doses based on research?
Does the product include all expected ingredients for its supplement category?
Are individual ingredient amounts clearly disclosed without proprietary blends?
Does the formula include a breadth of beneficial compounds from multiple pathways?
Strengths
- +Fully transparent label with individual ingredient amounts disclosed
Weaknesses
- −Missing several expected ingredients for its category
Ingredient Analysis (1 ingredients)
| Ingredient | Amount | Dose Adequacy |
|---|---|---|
| Methylsulfonylmethane | 500.000 mg | N/A |
Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.





