🥕Retinol (Vitamin A)

Vitamin A (retinol, retinoic acid) is made by our bodies from beta carotene (a type of carotenoid), which is found in foods such as sweet potatoes and carrots. Even people with genetically low conversion rates can easily get enough. Studies have shown that vegans get enough vitamin A. https://link.springer.com/article/10.1007/s00394-015-1079-7 If someone has the BCMO1 gene (beta-carotene 15,15′-monoxygenase) with the T allele in SNPs R267S or A379V, their body may convert beta-carotene to retinol (vitamin A) much less efficiently (although the evidence is inconclusive). This can be an extra challenge for a vegan as plants do not have retinol in them. However, logically simply increasing one's intake of beta-carotene would offset the reduced conversion efficiency. https://www.mygenefood.com/blog/can-vegans-get-enough-vitamin-answer-may-genetic/