What can I tell him to make him shutup about how good eating only salad and nuts is for your body. Something scientific, ofcourse. [/quote]
I don’t really like chiming in to “help” your side of a debate when I’m not really clear on what’s being debated. If he’s speaking from a health perspective, it’s debatable. There are malnourished vegans just like there are malnourished omnivores. For every vegan Russell Brand, there’s an omnivorous Honey Boo Boo. If anything, vegans tend to overestimate the nutrition they’re actually getting (they think they’re eating more than they really are, calorie and macro-wise).
If he’s speaking from an athletic or bodybuilding perspective, sorry to burst your bubble, but there have been successful vegan athletes and bodybuilders just like there have been successful omnivorous athletes and bodybuilders. Yes, they’re fewer in number, but it’s because they’re a subgroup of a subgroup of a subgroup, a smaller total population in the first case.
A vegan diet that provides the fat, carbs, protein, and calories that a person needs to sustain their level of activity will be comparably “effective” to an omnivorous diet that provides the fat, carbs, protein, and calories that a person needs.
[quote]If you are a vegan, why ? Scientific reason?
If you are an ex-vegan (back in meatbusiness) what changed your mind?[/quote]
A few years ago, I experimented and was vegetarian for a month (lacto-ovo [dairy and eggs] two weeks, then lacto [dairy only] two weeks) and then strict vegan for a full month.
I gained strength just like I’d been previously, lost some bodyfat and about 12 pounds of bodyweight, and felt fine overall.
I ended the experiment and returned to an omnivorous diet without having what alcoholics refer to as “a moment of clarity.” I essentially reverted because it was a rigorous and time-consuming diet, like any all-encompassing, lifestyle-altering nutrition plan is (kosher, vegan, pre-contest bodybuilder, etc.)