I think it's either grains or meats and beans. You want to stay away from oily and fatty food.
The recommended weight limit according to NIOSH would be base on an equation and is dependent to a number of factors. This equation is called the NIOSH Lifting equation. Under ideal conditions, the maximum recommended weight is 51 pounds. Hope this answers the question.
Mitosis produces two identical cells.
Hope this helps! (:
