But I never eat a vegan diet at all, unless my wife makes me... then I pick at the green and yellow stuff.
I try to eat meat every day, if my wife lets me. I travel a lot and when traveling without spousal supervision, I eat a lot of steaks, hamburgers, french fries, bacon and eggs. I avoid fish at all costs, unless I catch a trout in a mountain stream -- this is the only fish of consequence on the planet. People should drink one glass of wine every night at dinner. Two glasses is even better.
When I was dating my wife, she flipped out the first time we drove through the local McDonalds and the window lady did not take my order, she just said, "Hi Nick, that will be $4.85. I used to get the same reception at the local Del Taco, but I am forbidden to go there... of course what she doesn't know, won't hurt her. She wants me to live to be 90, I want to live until I can no longer backpack.
I drink diet Pepsi, because I do not like the taste of sugar in any drink. But I don't partake of soft drinks much, I prefer water or plain unsweetened ice tea. Tap water is better than bottled water, it is almost free. I drink too much coffee every day, usually a full pot.
Sounds like a walking heart-attack, doesn' it?
I walk or exercise almost everyday. Do a lot of hiking. I have little body fat, and low cholesterol. Part of this is genetic and part is leading a fairly active life. My doctor gives me a hard time about my diet, because my wife tells him about it... but I have to keep reminding him that I am a lot older than he, and am in better health and condition :)
I don't eat much in the way of sweets, because I don't care for them that much... but when I get a craving I get the most decadent desert possible.
So to answer your question, toned down, water downed versions taste like crap, don't satisfy my hunger, and are generally boring. They make eating boring and they make life boring.
I say, live a good life and enjoy it everyday. Partake of all the good things in life, and do it in moderation... except sex if possible. Go camping or backpacking every weekend if possible, and on all vacations.