Therapeutic effects of marine collagen peptides on Chinese patients with type 2 diabetes mellitus and primary hypertension
Zhu CF, Li GZ, Peng HB, Zhang F, Chen Y, Li Y. Am J Med Sci. 2010; 340(5):360–366.
PubMed 20739874 · doi:10.1097/MAJ.0b013e3181edfcf2
Compares people who got the treatment with people who did not.
- Who or what was studied
- 100 patients with type 2 diabetes and primary hypertension (50 per group) plus 50 healthy comparison subjects, in China
- Design
- Randomised, double-blind; patients also kept taking their regular diabetes and blood-pressure medicines
- Dose
- Marine collagen peptides from deep-sea fish, twice daily; dose not given in the abstract
- Duration
- 3 months
What it found
Compared with patient controls, the marine collagen peptide group had lower fasting blood glucose, HbA1c, diastolic blood pressure, mean arterial pressure, triglycerides, total and LDL cholesterol and creatinine, and higher HDL cholesterol and insulin sensitivity.
What it doesn't show
Patients stayed on their regular medicines, so this is an add-on effect in people with diabetes and hypertension, not in healthy people. The abstract reports lower diastolic and mean arterial pressure but does not list systolic pressure among the significant results, and it gives no dose.
Funding and conflicts of interest
No funding or conflict-of-interest statement appears in the PubMed record. Check the full text.
Summary written from the study's abstract and checked against PubMed on November 9, 2026. How we check studies. Educational information, not medical advice.