I have already mentioned that I add whey protein powder to a banana and soy milk drink. I have a bag of 1 kg.
I also take fish oil and multi vitamin/mineral supplements. I have enough for 5 more weeks.
I do not have plans to continue taking these supplements when I run out of them. I think of them as helping me with the transition to a Paleo diet since, as explained in this post, I do not eat sufficient meat yet.