<span>There is not such thing as a universally accepted standard of flexibility because there's no material that is taken as a reference point. You can't say it's twice the flexibilty of rubber or twice the flexibilty of bamboo or anything similar because no official reference points have been established in the SI system.</span>
1. decide what type of foods you like
2. calculate out how much you can consume per day
3. record everything and conclude to your results
Hope this helps!
