Asa Keisar

In addition to interviews in mainstream Israeli media, his book Velifnei Iver was distributed in 2016 to yeshivas throughout Israel. Keisar also presents a ten-minute lecture on the subject, Religious Veganism, discussing what the Torah, Talmud and scholars have to say about meat consumption. He has given the lecture at universities, high schools and yeshivas across Israel. A video of the lecture posted on YouTube in 2018, as well as a two-minute version of it, have each been viewed over two million times as of September 2018. On November 15, 2017, the President of Israel, Reuven Rivlin, wrote a letter to Keisar in appreciation of his work regarding veganism and animal suffering as a moral and Jewish imperative.

Keisar is featured in an upcoming documentary, Holy Vegans, which began filming in 2016 and is about vegans and vegan culture in Israel.

Keisar became a vegan after learning about the widespread animal welfare issues present in today's egg and dairy factory farms. In 2015, he wrote the book Velifnei Iver (translated as Before the Blind, in reference to the commandment in the Book of Leviticus, "Do not put a stumbling block before the blind"). In the book he makes the case that eating meat and animal byproducts is no longer permitted according to Jewish sources, because of the cruelty inflicted on animals by the modern mass production of meat, dairy and eggs.

Asa Keisar (Hebrew: אסא קיסר ‎; born September 1, 1973) is an Israeli Jewish religious scholar, rabbi, scribe, and advocate for veganism. He has given many public lectures across Israel in support of veganism as both a Torah imperative to avoid cruelty to animals, as well as it being the Torah’s ideal for mankind.