What are the lifestyle changes you made?

Fiber = Regularity, lower bad cholesterol...

More regular exercise is the biggest change I have made.
Second biggest change - limit the fast food to 1 or 2 times a month.

Since I started a couple years ago, I've made quite few changes:

Regular exercise - 30-60 minutes at least 4 times per week, try to do 6 or 7 days if there's time

Plan - pack my breakfast and lunch and snacks and try to plan meals for the week so the temptation to get fast food and take-out is diminished. I'll still have take-out once a week (and even fast food once in a great while) but my choices and/or portion sizes have greatly improved. Most days I'm able to track my food at the beginning of the day and may only add/change a few things depending on how the day goes.

Ingredients and portions of home cooked meals have also improved. I try to reduce the amount of carbs (pasta/rice) and red meats (especially fatty cuts) and increase the amount of veggies. Regardless of what I make, I take a smaller portion than I used to and don't eat until I'm stuffed like I used to.

Alcohol - personal choice but I don't care to drink my calories (it's a waste IMHO since they're not filling) so I limit my intake to special occassions

Cravings - find the best way to satiate them. If I'm really wanting some chocolate, I'll have some but will only have a little bit or find something comparable like a yummy Fiber Plus snack bar or Balance protein bar. I've found if I don't go ahead and eat what I want, I'll end up munching on whatever I can get my hands on and still won't be satisfied and I end up going over my calories either way in the end.

And of course consistently tracking food and exercise - can't know what's impacting your results if you don't keep some sort of journal.
Best of luck!

ETA: almost forgot one of the most impotant changing - eat breakfast! I used to skip this meal thinking it would save calories but in reality I'd end up being more hungry than I should be after lunch and I'd snack all afternoon. Now I eat breakfst, a pre-workout snack mid-morning, lunch, an afternoon snack and then dinner.

Also, more lean protein, more healthy fats - both help keep you full longer so you're not tempted to snack on bad stuff to keep your hunger at bay and/or energy level up.

Then: Out of breath walking up a flight of stairs.

Now: Going to run a marathon this spring.


Created by MyFitnessPal.com - Free Calorie Counter

Without a doubt... recording my meals!! that alone made me change so many other aspects.

- I changed from Vegetarian to Vegan (no added oils or sugar) and very balanced
- Stopped drinking coffee and switched to green tea
- no more wine for me at nights (which wasn't as hard as I had expected once I had to log the calories - haha)
- walk every day about 40 min (have to build up slowly to running again)
- eating about 1200 calories plus whatever I have "earned" from exercise but usually stay just a little below
- planning meals ahead
- pre-pack snacks, so I don't over eat
- eat very regularly; about every 2 - 3 hours

-drink only water or unsweetened green tea (no soda or juice)
-no processed foods (only fresh fruits, vegetables, and lean meats like chicken and fish, rarely red meat)
-prepare all foods in their most natural form, with only olive oil and no salt
-no white starches at all, get most of carbs from vegetables themselves
-substitute lettuce for bread to hold sandwiches together

-Counting calories
-Working out with a personal trainer 3 times a week
-Adding more cardio
-Eating much fewer processed carbs and more lean protein like turkey and chicken

- Either bringing breakfast or lunch (or both) to work at least 3 times a week
- Staying within my daily calorie alottment
- Eating correct portion sizes
- Added a ton of water
- Increased daily cardio to hit the 60 minute recommendation on MFP
- Snack portion control!!!! - stopped mindlessly eating in front of the TV
- Added more weights to my training sessions
- Increased the frequency of my personal training sessions
- Reduced the amount of meat I eat (fish and chicken for at least one meal)
- Increased my protein intake
- Started making my own recovery shakes for calorie control
- Mapping out my food and snacks for the day
- Actively build a support system at work, the gym and at home
- Release stress at the gym (pounding on something makes me feel better) instead of holding on to it

I'm sure I'm missing some other stuff....

Since mid November:

1.Totally cut out Soda ( drank diet soda all day, nothing else!) I do have one occasionally, once a week or so but thats it.
2. Water, water, and more water! I drink about 12 glasses a day most days, sometimes as low as 8 or as high as 16
3. Calorie tracking/logging and healthy choices in food. 1200 cal limit, plus exercise cals.
4. exercise! I go to fitness classes 3x per week, and will start couch to 5k in the spring.


Changes:
I feel strong!
I am down 35 lbs
my skin is clearer (water and better food, i struggled with some mild/moderate adult acne)
my mood is better
my libido is increased because i feel better about myself
I feel powerful, like i can do anything i set my mind to
I have fitness goals (first time EVER in my life)
My whole mindset is different. Other times when wanting to lose weight it was "i hope to weigh xxx" or it would be great to do this, and now its totally I CAN, I will, and When I.. instead of "if" I.....!
I have irritable bowel syndrome and with eating better and a healthy balance of fiber and nutrition daily, i have had almost no issues there either.

-The only thing that I have completely cut out of my diet is soda, but on occasion I'll drink a crown and coke or crown and diet coke.
-Portion Control/Learning not to be completely gluttonous (Learning that I don't have to get a DOUBLE cheeseburger with DOUBLE cheese and I also don't need chili and cheese smothered on a large order of fries. Used to eat ridiculously like this for EVERY meal.)
-Making healthier choices, even if it's not ALL the time (ex. banana and peanut butter on wheat toast instead of pancakes with lots of butter and syrup for breakfast)
-Counting calories
-Tons of water!
-Exercise!!! 5-6xper week. I have completely fallen in love with exercise and the way it makes me feel and look!!

That's about it! I still have all the foods I love, but just don't go overboard with it. I'll have 2200 cal days and 1200 cal days, just depends on how I'm feeling.

Changes:
-I'm more confident.
-My skin looks a lot better
-I can see my muscles!
-I feel way more energetic

By far, the biggest lifestyle change I have made is not eating everything served to me at a restaurant or even at home. I can have my not so healthy things by eating only a portion of it (usually half). I've never been able to do that before, but it's become common place now. Yay!

-Gym 5-6 days a week at least an hour
-I do not drink alcohol at all anymore (not to be on a high horse or anything. I just do not enjoy it anymore)
-Yoga/Meditation
-Following my nutritionist's advice with adding 2 colors of fruit or vegetables to each meal (this can be hardb/c Im so used to buying frozen meals)
-More Fiber
-Doing things (signed up for a photography group, signed up for a 10k and 5k). Sitting on my butt at home was depressing.