I have had a bit more experience with the Zone now after a couple of years of strict Zoning, and I have found out some interesting things.
1. I originally went by the recommendations for blocks based on the body fat calculator. I was supposed to eat 11 blocks. I weighed 155 and was 15% fat with no regular exercise, but I was building a house at the time, so I decided the informal exercise warranted 12 blocks. Not hard work, but on my feet all day.
2. My weight dropped to 138 and 7% fat after a couple of months, so I added another block to 13.
3. My weight loss stabilized, so I calculated the number of equivalent calories of fat and substituted the fat instead of extra block.
4. My weight increased to 145 and 12% fat.
5. I completed the house, which meant I was in front of the computer a lot, so I added aerobic exercise of 200 calories a day 6 days a week and dropped the extra fat, and added a 100 calorie block because the body fat calculator said 14 blocks was now needed.
6. My weight increased to 150 and 14% fat. I dropped the extra block and my weight started to drop. I am now at 148 and 13% fat.
What did I learn from this?
1. If you are in the Zone, blocks or fat are interchangeable calories for weight control.
2. The activity level on the body fat calculator underestimates how many calories are used up in just having an active lifestyle, even without any formal exercise.
3. Staying on a strict Zone plan makes it easy to control your weight and body fat %. If you know what you are eating and the effect on your body fat %, you can easily make adjustments to keep yourself where you want to be.