And the Bible actually says that everything is allowed but that not everything is constructive (1 Cor 10.23). That tells us that you are allowed to eat milk and honey, meat and wear leather clothing but it may not be beneficial to you.
You are not forced to fast but it may be good for you. It actually is good for almost all of us humans to fast. It is equally good for our bodies to abstain from meat wine and dairy have a multitude of academic research shown us. There are some few research results showing that it is good for us to drink a little wine and those has had a tremendous impact since every vineyard in the world refer to them every day.
What they seldom tells us is that it is an antioxidant called resveratrol in wine that is good for us and that that antioxidant can be found in raisins and in peanuts or in grape juice too. It may be even growing in your garden as Japanese Knotweed which contains a lot of resveratrol.
It is better to abstain from drinking wine, eating meat or other things as an offering to God, to a vegan is to show thankfulness to him.
In the garden of Eden there was no death - and no animal or man did die. Adam and Eve were actually vegans. God never meant us to eat meat. God actually said to man,