Venison is almost a "super food" low fat, low cholesterol, high vitamin B and either potassium or magnesium (can never remember which!)
Those of you who love natural British woodlands might be interested to know that they are under threat, mainly because the proliferation of deer, which have no natural predators. This means that saplings of native trees are getting eaten by the deer, if you have any Forestry Commission land any where near you, they grow pine type trees for timber but the native trees are not doing very well!
Add the fact that venison cannot be intensively reared or "farmed" therefore they have a very good quality of life (more than can be said of some more commonly eaten meats) and I feel that eating more venison would have a positive effect in several ways.
I know that there is this "you can't eat Bambi!" feeling, but I used to keep a flock of 50 ewes, and believe me there is nothing more enchanting than seeing a bunch of week old lambs bouncing about and playing, but you give them the best quality of life that you can, and then you eat them.
Why should deer be any different?