My vegan Vitamin D is made from organic lichen.

I guess that is partly algae?

I'll have to look that up now that you mention algae, Atticus.

The D I take has no sheep lanolin and no gelatin in the capsule.

My green tea tastes like fish sometimes. Ugh. Awful for someone who doesn't eat fish. I'm not going to be able to drink it anymore.

I wouldn't eat anything made of an animal's liver although as others here have said I was fed it as a young child. Ugh again.

btw agar agar (used instead of gelatin) is made from a type of algae. Seaweed is great fertiliser for the garden as well. Coral makes it's own sunscreen as does the Lichen. I think they make a product from coral.

I have to wonder how safe any of these turn out to be. I just read about pollution and how in 19th century lichens were used as a "pollution meter". Oh well, can't worry about absolutely everything can we?