Everything in moderation...including moderation." ~ Julia Child
The week before Thanksgiving I wanted to give up meat, coffee, booze, and sweets for a week. This was in an effort to get my food choice on track before the holidays came and went, then wondering (knowing) why make pants were a little snug at the end of it all. It was also to see if limiting these things had any discernible effect on me. As I said, I know a week is not a very long time so it would probably be too short of a time to notice anything. In terms of how my body felt, that proved to be correct. In terms of my mind, I learned/reinforced a couple things about my diet and general mind frame on eating.
I come from stubborn stock, on both sides. As soon as I'm told I cannot have anything of one thing - I want it more. I wholly believe in everything in moderation and that is the key to a good diet and mind. Everyone has their weaknesses and I combat them by not keeping those things in the house (read: potato chips and cookies). But when out to lunch on a Saturday I'll get a small bag of chips with my sandwich and maybe even a cookie. I have a little bit of what I love to eat and keep moving. By not allowing say that one cookie I will allow myself other things (e.g. cheese) and eat more than I should because I feel like a saint (relatively) for giving up all those other things.
One thing that I do not think is good for you in the slightest is fake sugar/artificial sweetener. I may have a Diet Coke once in a blue moon, but it cannot be good for you and I very much limit it in my diet. In terms of diet products, I think if it sounds too good to be true, it probably is. You're better off just eating a little of the real stuff, whatever that may be.
Lastly, a confession. I didn't make it the whole week and flubbed on one thing - the booze. I was home in DC on Monday and my dad and I had a wonderful meal out - lots of great conversation and a bottle of red wine to split. So sorry about that. But I say live in the moment, don't get carried away, and hop on the treadmill.