In reply to wvumtnbkr :
Here's what I've done. Do whatever you want with what I write about my experience so far. Background: 42 years old, 6'4", started around 190 pounds (my scale was old, fully mechanically, and said I was either 192 or 198 pounds. I have since replaced it with a digital scale that reviewed well and it seems pretty accurate.) and I'm now down to about 172; I've been weighing myself once a week on Monday morning before I start my day.
Mid-March I started having a look around my life and how things were going and I picked a few things to change. I went from, uh, a number of drinks on the average each day to zero alcohol entirely. I bought a new pair of running shoes and started running multiple times a week. I had been going on jogs once a week or so but this time it got serious. 45 to 60 minute runs every other day or so depending on my energy, availability, and the weather. I've kept pushing to improve and I'm running five days a week, sometimes six, and the runs are just under five miles to just over six depending on what I feel up to. Last month I ran over 100 miles total and I should get to about 115 this month. I'm not fast, at least i don't think my times are that great, but they're getting better and I feel a little less like death after them vs. where I was when I started.
I also do a basic workout most work days. Working from home lets this happen; I'm trying to get to 100 pushups a day (not there yet), and I do 100 crunches, 100 squats, and 100 pulls against a resistance band in a curling motion while seated to try and work on my biceps. I've never been very "top heavy" as far as strength goes and I like having this to work on and to help get me moving again after sitting at a computer for a few hours. I break up that stuff across three sets, so it's a rotation between things with a few minutes breather between sets.
As far as food, my meals aren't overly large, and not heavy on meat. I would worry more about eating more meat and carbs than I need than I would about fruit or nuts. I'm not a food scientist but am I really supposed to worry about the fat content in a pecan vs. roast beef?
About a month ago I got a Garmin fitness watch, the Forerunner 45S, which I like quite a bit. It says I'm going through 600 to 700 calories on my runs and it makes tracking in general pretty easy. I'm glad I bought it.
At some point I'll either need to get the calories up or slow down with running as I don't think I should be dipping much below 170 pounds. I still have pretty thin arms and there's still a bit of softness around the beltline that I'd like to see leave but all in due time. Since I got the watch and entering my weight in Garmin's app on my phone I've been losing a pound a week or a bit more the whole time I've had the watch.
You might want to get a food, drink, and sleep tracking app just to see how much you're really taking in of all three. Might be some smoking guns in there. Alcohol will really not help you on this adventure either way.