1. Effect of glucosamine supplementation on fasting and non-fasting plasma glucose and serum insulin concentrations in healthy individuals 
Allison J. Tannis, MSc, John Barban, MSc, Julie A. Conquer, PhD 
Osteoarthritis and Cartilage 
Volume 12, Issue 6, Pages (June 2004)
DOI: /j.joca

2. Fig. 1
Serum insulin response before and during an OGTT. A represents the placebo treatment group, while B represents the treatment group receiving glucosamine. Ingestion of dextrose occurred just after time 0. (A) Illustrates mean insulin values for each group during an OGTT in week 0. (B) Illustrates mean insulin values for each group during an OGTT in week 12. (C) Illustrates mean AUC for insulin.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )

3. Fig. 2
Plasma glucose response before and during an OGTT, for both placebo and glucosamine groups. Ingestion of dextrose occurred just after time 0. (A) Illustrates mean glucose values for each group during an OGTT in week 0. (B) Illustrates mean glucose values for each group during an OGTT in week 12. (C) Illustrates mean AUC for glucose.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )

4. Fig. 3
Mean glycated hemoglobin levels at week 0, 6 and 12 for both treatments.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )