Funkstar says:

Try taking things with high fructose corn syrup (sodas, etc.) out of your diet. Eat slightly smaller portions per meal, no fast food at all. Keep a food journal with calories recorded. You may be underestimating just how much you eat. At 140 lbs. and your height, you are still in the normal weight range, so I wouldn’t focus on trying to lose it fast. Just be patient. Even if you only lose a pound a week, you’re doing something right.

Jay S says:

At 5’5′, you should be 125 pounds for an average frame. Try eating mostly green vegetables and fish. Skip all white foods (including rice, bread, potatoes and pasta). Eat brown rice and brown bread instead.

Gigi says:

Hi, the idea weight range for your height is 125-145, so you are within your range, which just means that you can’t expect rapid weight loss. My suggestion is that you start keeping a food journal, (which you can print for free on the page below) and figure out exactly how many calories you’re eating, or at least write down what you eat, even if you don’t want to deal with counting calories. That will enable you to go back and analyze your diet and discover places where you can make improvements. My guess is that you’re eating more than you think (total) which is slowing weight loss. http://www.easy-weightloss-tips.com/prin…
Here’s my advice about how you could lose weight more quickly:
There’s two ways you could go and I think either way will work for you. First of all, my best suggestion is to learn to eat healthy. http://www.easy-weightloss-tips.com/eat-…
That means understand the food pyramid, the food groups, the recommended servings, etc. That is how you should eat for life! If you eat that way and have 3 small, healthy meals a day and 2 small, healthy snacks, you will lose weight. Each meal should be less than 400 calories and each snack should be about 100-150 calories. Eating highly nutritious foods is the key, so think in terms of lean protein, veggies, whole-grains, fruits, low-fat dairy, and heart-healthy oils.
The second option is to do a short-term “drastic diet” that is designed to last for 2 weeks max. This would take off the most weight rapidly. There are several on the site under “Diet Plans” but my favorite is the 5-4-3-2-1 diet. http://www.easy-weightloss-tips.com/5-4-…
You get to pick what you eat, but you’re going to want to pick highly nutritious foods to keep your metabolism working efficiently. Again, the “eat healthy” page can help you determine what highly nutritious foods are, if you need help with that. If you go on the short-term diet, then once it’s over, follow the guidelines on the “eat healthy” page.
Make water your main source of hydration and save the sweet drinks (even diet) for special occasions. Eliminate as much salt and sugar from your diet as you can.
The biggest component to fast weight loss is going to be your workout. You will want to make sure you do a good (30 minute minimum) cardio workout every day for weight loss (3 times a week is sufficient to maintain health). Activities that use the large leg muscles burn the most calories. These activities also tone the lower body quite effectively. Think in terms of power walking, jogging, biking, skating, swimming laps, jumping rope, dancing, racquetball, and jumping jacks. To make sure that you’re burning fat, you need to be sweating and huffing and puffing. In addition, do some good stretches and some strength training. http://www.easy-weightloss-tips.com/targ…
You’ll find some really good information on the website, including about five pages of weight loss tips, printable weight loss journal pages, printable exercise log sheets, motivational ideas, healthy recipes, etc.
Good luck!