Are there minimum lean body mass values for men/women of different heights/builds. I know a healthy body fat percentage is important, but what happens if someone is very underweight due to muscle/bone loss and so their body fat levels still appear normal. There has to be some kind of minimum healthy lean mass value right?

1. I think that I know what you are looking for so, here is a place you can go to find out what you need to know…….the website is www.bodyforlife.com go there …..on the home page they have a list off different options to the right. scroll down to exercise tools. click on that and they have a way of calculating where you are now and where you should be. all you have to do is answer a few questions…….hope this helps.
2. Not according to lean body mass. But I think you are looking for a Body mass index.

   Dont trust alot of stuff that ends in a .com

   look more for .gov .edu

   try this site:

   http://www.consumer.gov/weightloss/bmi.h…

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