Never had/heard of your problem with Vitamin D. A web search brings up - https://www.reddit.com/r/Biohackers/comments/1ia6yyb/update_vitamin_d_anger_issues/ ht

Never had/heard of your problem with Vitamin D. A web search brings up - https://www.reddit.com/r/Biohackers/comments/1ia6yyb/update_vitamin_d_anger_issues/ https://www.reddit.com/r/Biohackers/comments/1ia6yyb/update_... tl;dr - some Vit D supplements are based on lanolin. if you're sensitive to it, you may switch to a supplement that doesn't use lanolin. also one response talks about taking a multi-Vitamin B supplement for anger issues with Vit.D