In a study of 90 patients with chronic inflammation due to cardiovascular disease, rheumatoid arthritis or ostearthritis, those who took 300 mg per day of Neptune Krill Oil reduced their CRP (inflammation marker) levels by an average of 19.3% after seven days and an average of 29.7% after 14 days. The CRP levels of those who took placebo increased by 15.7% after seven days and 32.1% after 14 days.