Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements they use. The results below are based on 10,329 responses collected in November 2014. Respondents gave ratings for 1,709 brands and 891 merchants. Of these, 115 brands and 51 merchants each received at least 100 consumer ratings. Among these popular brands and merchants, those receiving the best (highest) rating on overall consumer satisfaction within their specific market segment are listed below. 

Top-rated Supplement Brands on Overall Consumer Satisfaction:
 
Catalog/Internet Brand: Swanson
Direct Selling (MLM) Brand: USANA
Discount/Warehouse Brand: Kirkland (Costco)
Food/Drug/Mass — Broad Product Line: Nature Made
Food/Drug/Mass — Narrow Product Line: Qunol
Grocery Store Brand: Trader Darwin (Trader Joe’s)
Healthcare Practitioner Brand: Thorne Research
Health Food Store Brand: Carlson Labs
Pharmacy Brand: CVS
Vitamin Store Brand: Vitamin Shoppe
Canadian Brand: AOR (Advanced Orthomolecular Research)

Top-rated Supplement Brands on Consumer Satisfaction with Specific Types of Supplements:*
 
Calcium: Life Extension
CoQ10: Puritan’s Pride
Digestive Enzymes: Puritan’s Pride
Fish Oil: Carlson Labs
Glucosamine & Chondroitin: Swanson
Multivitamin: Life Extension
Probiotic: Puritan’s Pride
Resveratrol: Puritan’s Pride
 
* Excludes direct sales brands due to potential respondent bias 

Top-rated Supplement Merchants on Overall Consumer Satisfaction:
 
Catalog/Internet: Swanson
Direct Sales (MLM): Nutrilite
Grocery Store: Natural Grocers
Mass Market: Target
Online Multi-Category Retailer: Amazon.com
Online Supplement Retailer: BodyBuilding.com
Pharmacy: Walgreens
Vitamin Store: The Vitamin Shoppe
Warehouse Store: Costco

The 142-page ConsumerLab.com 2015 Survey of Vitamin and Supplement Users Report analyzed and compared consumers’ satisfaction with popular brands of supplements and supplement merchants. The report also examined the use of 32 specific types of supplements and nutritional products. Results are analyzed by respondent age, gender, and level of supplement use. The report is available for purchase. Custom analyses are also available. For more information or to purchase the report, go to http://www.consumerlab.com/reports/CLSurveyBrochure2015.pdf