C-
N+ Score67
Joint & BoneServing: 1 Tablet(s)Type: Mineral

This Source Naturals Zinc supplement is a mineral product designed to provide essential trace elements. It contains Zinc at 50mg and Copper at 500mcg, both of which are present at dosages commonly considered clinically relevant for their respective functions. However, the included Calcium at 27mg is underdosed when compared to typical clinical recommendations for bone health. With an N+ Score of 67, earning a C- grade, this product is categorized as average, reflecting its focused ingredient profile. It features a total of 4 ingredients with 100% label transparency, allowing consumers to clearly see all component dosages. This product may be suitable for individuals specifically looking to supplement zinc and copper, particularly if advised by a healthcare professional.

About This Product

Zinc by Source Naturals is a joint & bone supplement containing 4 active ingredients. It has earned an N+ Score of 67/100 (Grade C-).

Notable clinical-dose ingredients include Zinc, Copper.

N+ Score Breakdown

Ingredient Adequacy67/100

Are key ingredients present at clinically effective doses based on research?

Formula Completeness25/100

Does the product include all expected ingredients for its supplement category?

Label Transparency100/100

Are individual ingredient amounts clearly disclosed without proprietary blends?

Ingredient Diversity86/100

Does the formula include a breadth of beneficial compounds from multiple pathways?

Strengths

  • +Fully transparent label with individual ingredient amounts disclosed
  • +Broad ingredient diversity exceeding category norms
  • +2 ingredient(s) at clinical dose levels

Weaknesses

  • Missing several expected ingredients for its category

Ingredient Analysis (4 ingredients)

IngredientAmountDose Adequacy
Calcium27.000 mgUnder
Zinc50.000 mgHigh
Copper500.000 mcgHigh
Total Carbohydrates1.000 Gram(s)N/A

Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.