<human>: So after a long time talking about and rationalising my obesity in every manner possible, I've finally taken the plunge and started on a fitness plan. 

All my life up to this point, I've clung to the idea that my fitness isn't so bad and besides, why put the effort in when people should accept me how I am? I've finally realised though that people DO accept me as I am, but that's no reason not to improve my health and self image.

So, now for the important part. Right now I'm about 5' 9" and about 250lb. I don't have a set end weight I'm aiming for, but I guess I'd like to get under 200lbs, by the end of the year if possible. 

I've embarked on an exercise regime - basically following [C25K] and I'm working on improving my diet as well. I guess I don't eat that much crap and don't have any cravings for sugary or alcoholic treats, but my main vice is enjoying breads of various types. I managed to walk + run for a good hour today, and it's the first time I've done anything like that in a *long* time. 

My main concerns are around the amount of exercise I'm doing - if I follow the C25K program for 30-40 minutes every day (today was unusual in that I had the time to go out for an hour) is that, allied with major diet changes, enough to fulfil my goals?

Also, I'm looking at following a low carb/keto diet - my main issue there is that I've seen people load up on dairy items like cheese and butter and that sort of food plays havoc with my stomach - what are some good alternatives? I'm ok in that I like eating healthy vegetables (if someone told me all I could eat is brocolli for the rest of my life I'd still be pretty satisfied!) but how about snacking etc? 

Anyway, thanks r/loseit! I've been thinking about taking the plunge for a while but reading what others have done here has given me that push I needed to really change my life.

Could you distill the essence of the text into 1-3 sentences?
<bot>: just started on my weight loss quest, wanting to lose >50lbs by January 2012, looking for tips and tricks to keep the process moving.