Cod Liver Oil for Covid-19 Prevention Study

Launched by OSLO UNIVERSITY HOSPITAL · Oct 28, 2020

Keywords

ClinConnect Summary

Preliminary evidence from literature and an ongoing study in the investigators' lab suggests that cod liver oil may prevent Covid-19 and complications of Covid-19. In the present study, the investigators will examine whether this is actually the case by randomizing volunteers to take cod liver oil or placebo (corn oil) during the winter months of 2020-2021. The investigators also aim to explore whether cod liver oil can prevent other respiratory tract infections, as well as explore and confirm already known health effects and possible new health effects, in particular rare adverse events as...

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Any person \>18 years with a Norwegian Personal Identity Number
• Exclusion Criteria:
• • History of renal failure or dialysis, hypercalcemia, severe liver disease (cirrhosis), sarcoidosis or other granulomatous diseases (Wegener)
• • Allergy to fish or corn oil.
• • Pregnancy or planned pregnancy before summer 2021
• • Vegan diet
• • Age \>75 years old at inclusion based on the Norwegian Personal Identity Number
• • Difficulty in swallowing cod liver oil or other oils
• • Previous Covid-19 disease
• • For Caucasians only: Use of any supplement containing more than trace amounts of vitamin D or omega-3 fatty acids at inclusion (Vitamin D levels in non-Caucasians living in Norway are frequently low even among those self-reporting using dietary supplements). This criterion will be relaxed if too few participants volunteer for the study and only Caucasians that use cod liver oil or an equivalent dietary supplement (with omega 3 and vitamin D) more than 5-7 times per week will be excluded.