In the following article: Why Vegetarians and Vegans Should Supplement with DHA, under the ‘Sex’ section, it says that:
One study showed that women converted 21 percent of ALA to EPA and 9 percent to DHA, whereas men converted 8 percent of ALA to EPA and 0 percent for DHA.
This references the following article: Eicosapentaenoic and docosapentaenoic acids are the principal products of alpha-linolenic acid metabolism in young men*.
In the following article from Huel: Guide to EPA and DHA in Huel, under the ‘Conversion Rates’ section, it says that:
One [study] looked at ALA metabolism in males and indicated that approximately 8% of dietary ALA is converted to EPA and 4% is converted to DHA.
This references the same article as the first.
So my question is why do these two statements conflict when they are using the same source? My knowledge of nutrition is not good enough to read the source article and find the reason for myself, so ideally it would be good to hear from someone who can read the source article and point out where this discrepancy is coming from.