Omega 3 provide cancer?- Do you think that dietary supplements Oméga 3 cause cancer ?
Secondary outcomes of a study on the utilization of supplements of omega-3 fatty acid to forestall repetition of vas events recently revealed a number of days past [1].
However, these results AR somewhat surprising: within the cluster of girls United Nations agency received supplements of omega-3 fatty acid, the chance of developing cancer is three times and therefore the risk of cancer mortality is five.5 times relative to cluster receiving placebo.
What appears initially concern is that it's a irregular, double-blind against placebo. in theory, this kind of study is that the gold normal for scientific proof. However, as has been mentioned in a very previous article [2], several pitfalls stay despite the approach that's optimum.
Omega 3
Let's contemplate the weather that highlight the restrictions of this study:
- First, as indicated by the subtitle of the study, it's "secondary outcomes" (ancillary findings). As a reminder, intervention studies can't offer proof that the first terminus outlined at the beginning (here vas events). the standards or secondary outcomes have worth hypothesis.
- Then, the amount ladies|of girls|of ladies} enclosed within the study is comparatively little (514 women divided between supplement and placebo). it's not not possible that, despite organization, there are a lot of tumor-bearing within the supplement cluster than within the placebo cluster girls. this can be the foremost possible supply of bias during this study. Indeed, the time between exposure to a substance and therefore the designation of cancer is long, which suggests that the cancers that developed throughout the study were in all probability introduced for a few time, that time of what is more the authors.
- Note conjointly that within the original study [3] all-cause mortality was similar between the omega-3 fatty acid supplements and therefore the placebo cluster, indicating a compensation cancer assumed by alternative helpful mechanisms.
Finally, we have a tendency to acquire a low-power study, that merely permits you to get a hypothesis that needs additional work.
Omega 3 provide cancer? - Do you think that dietary supplements Oméga 3 cause cancer ?