Hey @cellcubed, I should have clarified this a bit more! While some flaxseed may pass through undigested, there is more than enough flaxseed in Huel H&S for the conversion of ALA to DHA and EPA in sufficient amounts.
The adequate intake (AI) for omega 3s is 1.1g and 1.6g for women and men, respectively who are 14 years of age or older (these recommendations do not include pregnancy and lactation as it is a bit higher) (#1). There is about 3-4.5g of omega 3s per serving of H&S (depending on flavor) and 3-4g per serving of Huel v3.0 powder (depending on flavor). We note that most of this would be ALA from flaxseed (#2).
We explain on the link above (#2) an example of Huel powder with ALA and conversion to DHA and EPA. Not only is it above the AI for omega 3s, but Huel powder was actually slightly above the recommended guidelines (which can vary) for DHA/EPA when consumed at 2000 calories, and this was using the more cautious conversion rate. So Huel H&S also provides more than enough ALA for conversion to DHA and EPA per 2000 calories. Sorry for any worry or confusion I may have caused there. 