Guacamole as storing the guacamole in an air-tight container or wrapping tightly in plastic to limit the surface area exposed to the air. As the major ingredient of guacamole is raw avocado, the nutritional value of the dish derives from avocado vitamins, minerals and fats, providing dietary fiber, several B vitamins, vitamin K, vitamin E and potassium in significant content (see Daily Value percentages in nutrient table for avocado). Avocados are a source of saturated fat, monounsaturated fat and phytosterols, such as beta-sitosterol. They also contain carotenoids, such as beta-carotene, zeaxanthin and lutein. "Mantequilla de pobre" () is a mixture of
Active ingredient of most medications, such as the Medicines database providing information on medications available in Australia. In phytopharmaceutical or herbal medicine, the active ingredient may be either unknown or may require cofactors in order to achieve therapeutic goals. This leads to complications in labelling. One way manufacturers have attempted to indicate strength is to engage in standardization to a marker compound. However, standardization has not been achieved yet: different companies use different markers, or different levels of the same markers, or different methods of testing for marker compounds. For instance, St John's wort is often standardized to the hypericin which is