I have been having veggies and fruits and have cut out sugar (especially white sugar) since Jan 2015. After getting more strict about this diet as well as my body weight exercise since May 16 this year, I have been losing between 50 gms to 100 gms of body fat per day. I check on a digital weighing scale that reports weight in kilos and pounds, BMI, body fat %, muscle %, water % and bone density.

About B12: It is produced in human and animal gut by bacteria that is present in soil. The B12 in our gut is too far down to be injected. This bacteria needs the mineral cobalt. See [1][2][3]

I was also surprised to learn that there is no religious "mandate" of sacrificing animals. See the Vegan Muslim Initiative [4]. I have not yet researched what the other religions say about the killing of animals.

I am of the opinion that even if a religious book were to deem it acceptable to kill animals, we today have the means to live off plants and the awareness and experience to know that various animals are sentient. We can continue to put ourselves first without requiring that we take an animal's life for this.

[1] https://www.riseofthevegan.com/blog/b12-is-not-just-a-vegan-... [2] https://www.vegansociety.com/resources/nutrition-and-health/... [3] https://www.vegansociety.com/resources/nutrition-and-health/... [4] https://veganmuslims.com