Clubs and amusement parks use special black light paint that glows different colors. You can also buy fluorescent black light bubbles, invisible black light ink, fluorescent black light carpet and even fluorescent black light hair gel. Ordinary highlighters work well as black light pens..
The definition of a nutrient is something that provides nourishment, food or substances necessary for growth. Protein is an example of a nutrient.
diet adjective [not gradable]. âº (of âfood or âdrink) âcontaining much less âsugar than âusual and often sweetened artificially, or âcontaining less âfat than âusual: diet âsoda. (Definition of diet from the Cambridge Academic Content Dictionary Â© Cambridge University Press).