Rypsiöljy ei olekaan hyödyllistä?

Rypsiöljyä on suositeltu sen sisältämän runsaan omega-kolmosrasvan takia.

Mikäli yhtään ymmärrän lukemaani englanninkielistä lääketieteellistä tekstiä, niin uuden tutkimuksen mukaan kasvisperäisistä omega-kolmosista ei olisikaan hyötyä. (Varmaan minimitarve kuitenkin on aina turvattava.)

Sen sijaan kalanrasvasta ON hyötyä sydäntauteja ajatellen.

"Here we report the results of a de novo pooled analysis conducted with data from 17 prospective cohort studies examining the associations between blood omega-3 fatty acid levels and risk for all-cause mortality. Over a median of 16 years of follow-up, 15,720 deaths occurred among 42,466 individuals. We found that, after multivariable adjustment for relevant risk factors, risk for death from all causes was significantly lower (by 15–18%, at least p < 0.003) in the highest vs the lowest quintile for circulating long chain (20–22 carbon) omega-3 fatty acids (eicosapentaenoic, docosapentaenoic, and docosahexaenoic acids). Similar relationships were seen for death from cardiovascular disease, cancer and other causes. No associations were seen with the 18-carbon omega-3, alpha-linolenic acid. These findings suggest that higher circulating levels of marine n-3 PUFA are associated with a lower risk of premature death."

https://www.nature.com/articles/s41467-021-22370-2