For example, the World Health Organization recommends keeping added sugar intake to 10% of total calories. For the average 2000 calorie-diet that's a maximum of 50 grams. The American Heart Association recommends 6 teaspoons of sugar for women and 9 for men (1 teaspoon of sugar has about 4g of sugar).
In developmental biology, cellular differentiation is the process by which a less specialized cell becomes a more specialized cell type. Different tissues have different kinds of cells.
Differentiation means that one cell performs a different function than another cell, depending on where it is in your body. The example of this is your lung cells and your brain cells. The cells in your lung do a different job than the cells in your brain. Your lung cells work on exchanging oxygen from the environment with carbon dioxide in your system, to keep you alive. Your brain cells send and receive signals throughout your body. All the cells contain the same genetic material and all of them are from one original cell that started as a fertilized egg, but they look different and act different from one another. This is differentiation.