PMS and painful menstruation In a double-blind study of 70 women, the effects of fish oils containing 18% EPA and 12% DHA were compared with those of krill oil on the symptoms of PMS and painful menstruation. During the first month, patients took 2 g per day of krill oil or fish oil. For the next two months, they took the same dose, but only within the eight days before and two days after menstruation. Participants were also instructed to follow a diet that contained 40% carbohydrates, 40% protein and 20% fat. These dietary changes alone would have a positive effect on PMS. The results showed that krill oil helped alleviate symptoms of dysmenorrhea, as well as emotional symptoms associated with PMS, to a greater extent than fish oil. Triglyceride and cholesterol control In a comparative study of 120 participants affected by hypercholesterolemia and hypertriglyceridemia, participants took a placebo or one of the following doses of krill oil every day for three months: 2 g or 3 g of krill oil – depending on the weight of the participants, 1 g or 1.5 g of krill oil, 3 g of fish oil. After three months, the total cholesterol level of the participants who took 2 g or 3 g of krill oil per day decreased by an average of 18%, compared to 13% in those who took 1 g or 1.5 g of oil from krill and 5.9% in those who took 3 g of fish oil. In the placebo group, cholesterol levels increased by 9.1%. Krill oil, at a dose of 2g or 3g per day, also reduced blood triglyceride levels by an average of 27%, much more significantly than fish oil and placebo. The researchers found a very slight positive effect on blood sugar levels, a reduction of an average of 6% in the two krill oil groups, compared to 3.3% in the fish oil group. Inflammatory diseases A double-blind, placebo-controlled study was conducted in 90 patients diagnosed with cardiovascular disease, rheumatoid arthritis or osteoarthritis and clinical signs of chronic inflammation to analyze the anti-inflammatory properties of krill oil. During the study, the participants stopped taking the anti-inflammatory drugs they usually took. The researchers followed the levels of C-reactive protein – CRP of the patients, which is a physiological marker of inflammatory processes. The results showed that after 30 days, CRP levels decreased by about 30% in the group that took 300 mg of krill oil per day and increased by just over 25% in the placebo group. A standardized questionnaire aimed at assessing osteoarthritis-related symptoms was completed before, during and at the end of the study: pain,stiffness and physical difficulties were significantly less in participants taking krill oil after one month of treatment. References: https://www.passeportsante.net/fr/Solutions/PlantesSupplements/Fiche.aspx?doc=krill_huile_ps http://www.ncbi.nlm.nih.gov/pubmed/17353582?dopt=Abstract http:// www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15656713&query_hl=2 http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db =PubMed&list_uids=12777162&dopt=Abstract http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=9571330