I became vegan very gradually. Can't say I noticed any difference before or after. Could be partially because of the gradual nature of my transition. but I think it's more likely that there was no change.
Maybe the most common mistake new vegans make is that they don't eat enough calories.
Plant based food is much less calorie dense than animal based food.
For instance 100 grams of chicken has 200 calories.
but 100 grams of tofu has less than 100 calories.
And 100 grams of black beans has even less.
1 cup of pork has almost 400 calories. one cup of black beans has 200.
many new vegans eat the same weight or volume of food not realizing that they are getting less than half the calories. So then they run out of energy.
There are a lot of excellent athletes and cyclists who use
Tomasso who are vegan. Many of them have books, videos, and blogs. You might want to check some out
This is a good example
Whether you're vegan, vegetarian, or just curious, here's what a typical day on a healthy, plant-based diet looks like.
www.nomeatathlete.com