Linseed, my 'goodness', when was the last time I saw linseed mentioned in a recipe ? I looked it up, and its quite amazing ... Rich in B-6 Iron and calcium, but its magnesium content is huge, which is generally lacking in our diet. I found this article, you might be interested in:

https://www.ancient-minerals.com/magnesium-deficiency/symptoms-signs/

Anyway, thanks for the brilliant recipe, I haven't tried it yet as I don't have an oven - I make pan bread, so I'll try to make a pan baked version :)