Checked or proved validity or significance of something.
Organic compounds acting as body bioregulators. Vitamins are taken through food because our body cannot synthesize them in a quantity sufficient for its needs. Lack of vitamins can provoke various diseases.
Nonspecific disorder characterized by forceful expulsion of stomach contents through the mouth and sometimes the nose. Vomiting can occur due to a wide variety of conditions and is often preceded by nausea and accompanied by paleness.