Scroll down for video. Jordan Waddingham made a startling discovery after finding the world's largest European wasp nest. 'I followed the wasps back to their nest after they'd gone and collected wood from our sheds,' young Jordan told Seven News.
In pharmacology, bioavailability (BA) is a subcategory of absorption and is the fraction of an administered dose of unchanged drug that reaches the systemic circulation, one of the principal pharmacokinetic properties of drugs. By definition, when a medication is administered intravenously, its bioavailability is 100%. However, when a medication is administered via other routes (such as orally), its bioavailability generally decreases (due to incomplete absorption and first-pass metabolism) or may vary from patient to patient.
For example, whereas raw carrots and spinach are good sources of dietary fibre, cooking them allows the human body to also extract a much larger fraction of the carotenoids contained. 5. Minerals and other nutrients exist in different chemical forms in the food and this can influence their bioavailability.A classic example is iron. In general we talk about two types of dietary iron; haem and non-haem iron.nderstanding nutrient bioavailability helps optimise diets and set appropriate nutrient recommendations. Defining nutrient bioavailability. Several definitions exist for nutrient bioavailability, but broadly it refers to the proportion of a nutrient that is absorbed from the diet and used for normal body functions.