Maybe I overthink everything.

Before I started cycling again last year, when I was merely walking 5 miles a day, I kept my calories to around 1500 a day with a ceiling of 1800.

But with the cycling, as my fitness level continues to increase, which is the muscle density referred to in this thread, my ability to cycle for longer distances increases, and thus my cardio time increases and my calories burned increases.

Yes, I want to lose the excess body fat. However, at the same time two other things are important to me, and that is my long-term health and my desire to be able to recover from my rides quickly and get on the bike again the next day. Therefore, every day, I eat to nourish my body, to help my muscles recover and repair, and to restore nutrients I lost during cycling. For example, I don't want to be cycling for a lot of years and the doctor says, well you have osteoporosis because you didn't replace the calcium you burned when you were cycling.

So the whole calorie thing gets confusing. I need to eat enough calories to replenish what I burn and to recover and repair - and still burn body fat - yet exactly how many calories is that? I've read a lot of books on cycling, and Zen gave a link to a good site in her reply, but there still isn't a real forumla I can grasp that I know I can adhere too, a formula that will adapt to my diet as my distances increase. In other words, I used to be a person who ate too much, and I now worry that I may not be eating enough for sustained long-term health, which is a complete reversal for me and quite ironic.

I should add I rarely weigh myself anymore, at the end of each three-month period is all, and when I do, the body weight hasn't gone down a significant amount, just some. I do use the tape measure and I continue to shrink, so I know my body composition continues to change for the better. And last week I had to spend most of a day cleaning my closet and ruthlessly taking out all the clothing that was too big for me, which is something I seem to need to do about twice a year now.

Darcy