What does Bioavailability mean? Why is it important to me?
According to futureyourhealth.com, this is what they say.
A substance will only take effect if it can be absorbed by the body, so bioavailability is the key to creating a supplement that delivers proven benefits.
Bioavailability is a measure of how easily a substance can be absorbed by the body. In pharmacology, for example, it refers to how quickly a drug enters the circulatory system and reaches the desired area, so that it can take effect.
Nutritional scientists are well aware of the importance of bioavailability. For example, when you eat, the food is taken into your digestive system. Some of the useful nutrients are then absorbed into your bloodstream and are either stored or used by your cells. However, because your body is not perfectly efficient, some of the nutrients are excreted or destroyed in the stomach and intestines.
Macronutrients such as carbs and fats are highly bioavailable, but the beneficial micronutrients commonly sold as supplements – vitamins, minerals, flavonoids and carotenoids – are often difficult to for the body to absorb.