Some thoughts:
--As Muirenn says, track what you eat and calculate the calories. Sites like http://www.livestrong.com/myplate/ can help you with this.
--Figure out roughly how many calories you burn a day, your resting metabolic rate plus a guesstimate of your activity level. Here is a calculator: http://www.caloriesperhour.com/index_burn.php Keep in mind that this is only an estimate and may not be correct.
--Eat 500 calories less than what you burn a day and you will lose a pound a week. This is a good amount to lose.
--Vary the biking with weight training. Weight training helps you preserve muscle while losing weight.
--I find it helpful to eat after I exercise. It helps with the appetite. You can time your meals to eat that way. Or, spare some calories for a snack. My favorite post ride snack is chocolate whey powder in milk. 240 calories worth. Other people like chocolate milk. Or maybe some tuna or cheese.
--Listen to your body! If you can hardly walk in the evening maybe you are pushing it too hard. Maybe commute every other day? And weight train on the non-commuting days, maybe twice a week.
--Be sure to take a day off once a week to recover.
--Above all, have some fun with the biking. Fun will get you to ride the next day and the next day thereafter.



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) It can be very educational and in some cases mind blowing to see how what you eat stacks up against your base nutritional needs and how exercise affects the whole equation. While approximate, an app like MyFitnessPal ( for pc or phone) can help you to determine your base calorie need for the weight you want to lose, and then help with the exercise portion. You can eat more when you exercise harder, but it has to be quality food, and it has to be within the range of what you "earned" by exercising, without going over.

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