It is apparent that you want to watch your diet and exercise on a treadmill so you are in the right direction. Here are just a few other suggestions:

Diet:
First you should eat every three hours. Constantly eating boost your metabolism. If you skip meals your body goes into “starvation” mode since it doesn’t know when it will be fed next whenever you do eat it stores extra fat. Also try not to eat late at night try to eat dinner by 7pm definitely no later than 9pm. This is what I hear from many people and my kickboxing coach and also my kickboxing book. “We’ve asked you to eat five times a day- don’t fret. You won’t gain fat, especially if you know a thing or two about basic nutrition. Remember that eating every three to four hours revs your metabolism, which is one way your body burns calories.” - The Complete Idiot’s Guide to Kickboxing by Karon Karter and Guy Mezger.

Heres what the schedule should look like
7am Breakfast
10am Snack
1pm Lunch
4pm Snack
7pm Dinner
9-10pm Light Snack if still hungry. Or you can eat it right after your Dinner.

Now as for what you should eat for these snacks and meals I’ll leave up to you here are some good ideas you can mix and match these meal items to create your own diet.

Breakfast:
1)Cereal with Low fat milk. Something like Special K, Cheerios, or Frosted Wheats.
2)Oatmeal
3)A few slices of turkey bacon, couple pancakes or few pieces of toast, a piece of fruit
-A glass of 100% Juice. Usually the cheapest pure juice is apple or orange.

Lunch:
1)A sandwich take your pick ham, turkey, chick, beef, pb and j, just try to avoid too much mustard, mayo, or any other sauce. Slap on some low fat cheese, lettuce, tomatoes, onions, or whatever veggie you like and enjoy. Oh yeah try wheat bread its a lot better for you.
2)Also the same as making a sandwich buy a sub from Subway.
You can eat the sandwich with a “Grab” size bag of baked chips.

Dinner:
1)Grilled or baked chicken breast or fish fillets seasoned it how you please. Remove the skin do not bread the chicken or fish, fry it, or add too much salt to it. Sides: Your choice of veggies: I personally love either corn or steamed broccoli.
One baked potato avoid sour cream, adding a lot of butter, bacon bits. Try to keep it as close to a plain potato as possible. Or one potato chopped up and roasted with herbs is good too.
2)Homemade Hard or Soft Tacos: Use ground turkey instead of ground beef(if you do decide to use beef use lean beef), Romaine or Green Leaf Lettuce(healthier than Iceberg), Tomatoes, 2% Milk Shredded Cheddar Cheese, Topped with salsa is you like, wrap in preferably corn tortilla (corn is slightly better than flour, but flour is ok) or place in taco shells.
3)Grilled Hamburgers:Like before use ground turkey if not at least lean beef. Grill over charcoal it adds great flavor to the meat along with dripping off extra fat/grease if you dont not have a charcoal grill or time to grill look into getting an inside grill such as a George Foreman Grill though you do not have the same add taste from the charcoals you will still benefit from extra fats dripping off the meat. Use whole wheat buns. 2% milk cheese, and the extra veggie toppings you may like. Add additional condiments sparingly if at all. What good are hamburgers without french fries, huh? To avoid cook fries in a healthier way try frying them in olive oil(olive oil is pretty expensive though compared to corn/vegetable oil) or bake the fries in the oven. Place in a pan and use only a little vegetable oil to prevent fries from sticking and set oven to broil turning over when the fries are golden brown. The fries will be healthier than deep frying them and still have that crunchy crispy fried taste.
4)Big salad with grilled chicken. Watch the salad dressing that usually screws people up.
5)I’m not a big fan of red meat but you can eat it every so often, try to get lean beef or pork and go for grilling or baking it similar to the chicken and fish. Serve with your sides of veggies you like.

Snacks:
1)1-2 servings of fruit or veggies. Celery, Apples, Bananas, Raisins, just to name a few.
2)Handful of nuts lightly salted.(My favorite cashews)
3)Grab size bag of baked chips
4)2 oatmeal cookies(iced or raisin are fine too)
5)1 bag of 100 calorie snacks. They come in snacks flavors like Oreos.
6)My favorite: a fruit smoothie.
7)Yogurt
8)Small salad
9)Air popped popcorn is actually pretty good for you. Its not until you add the butter and salt that its becomes unhealthy.
10)Granola bar.

Drinks
-You need to drink at least 8 glasses of water throughout the day.
-Try to drink one cup of white or green tea for me. I personally like Snapple’s White Tea infused with Strawberry you can buy the packages and brew at home within minutes
-I know if you have the urge how hard it is to cut out all bad foods from your diet so for dinner you can have one diet soda or glass of crystal light
-Try to drink only 100% juice many “juices” out there are only about 20% real juice. Even then drink sparingly because many juices have a lot of sugar regardless.(You may want to try reduce sugar juices)

Exercise: Try to do something you think is fun anything you enjoy doing. That will make exercising more fun and you’ll be less likely to bail out on working out. So if there is a sport you enjoy go for that, you are interested in martial arts try kickboxing, or of course you can still with the treadmill or join a gym. Just get movin’.

I gave my mom The Biggest Loser Workout: Cardio Max and she enjoyed it and lost weight , also some pretty good workout DVDs are Turbo Jam, Hiphop Abs, Carmen Electra Striptease Aerobics, Women’s Health: The Wedding Workout, and Billy Blanks Bootcamp.

As for diet pills. I guess the main thing you wanted to know about:

I’ve never taken it, but after looking at the reviews from customers I’ve concluded Alli is good. It’s the only FDA approved over-the- counter weight-loss pill. It works by blocking about 25% of the fat you consume which means it cuts out some of the calories you ingest therefore helping weight loss.

1)It helps increase the amount of weight loss but you still have to watch what you eat and exercise
2)About 70% of people were satisfied and 30% of people were not
3)Typical weight loss(if any)seems to be 1-2.5lbs per week.
4)Most people who weren’t satisfied was because of the side effects associated
-alli blocks the absorption of about 25% of fat, so when you
eat it….its gotta go somewhere. you’ll notice an oily substance(fat) in your stool
-also gas seems to be a problem too
-just because it blocks some of the fat you eat doesn’t mean you can go crazy eating fatty foods. it appears people who pig out on fatty foods while taking it gets diarrhea

Also Hydroxycut has good reviews:

If you are looking for a pill that supresses your hunger look for something with hoodia in it like Trimspa:

So what is the best solution for permanent weight loss? Well, just do these 3 things:-

1. Build Muscle – The more muscle you have, the more calories your body will burn.
2. Change Eating Habit – Eat your carbohydrate early in the day and restrict carbohydrate consumption later part of the day.
3. Exercise Your Heart and Lungs – Go for regular exercise and perform exercises that will make you puff, pant and sweat such as jogging, skipping or take part in ball games.

When these 3 activities become part of your daily routine, you will be burning extra calories every day. That means you will not put on weight easily and will lose body fat forever.
Jason Homan

Naturopathic Weight loss Clinic

Or replace Clinic with Center.

Organic Fat Farm

Herb’s Reducing Clinic

Whole Weight

Lean Sprouts

The Snake Oil Diet

But, becareful because others like Hydroxi-Cut can cause your heart rate to rapidly increase which isn’t good at all!