Your metabolism is the rate at which you burn off energy from the food you eat. Everybody's metabolism is slightly different, so everybody has slightly different needs when it comes to calories. As a general rule, the smaller and more physically active you are, the faster your metabolism.
Giardiasis is an intestinal infection of man and animals caused by a protozoan parasite Giardia intestinalis (also known as Giardia lamblia). Giardia is a simple one-celled parasitic species; it is not a worm, bacteria or virus. The parasite occurs worldwide and is a common cause of Traveler's Diarrhea in people.
Diarrhoea is usually a symptom of gastroenteritis (a bowel infection), which can be caused by: 1  a virus â such as norovirus or rotavirus. 2  bacteria â such as campylobacter, Clostridium difficile (C.3  parasites â such as the Giardia intestinalis parasite that causes giardiasis.iarrhoea is usually a symptom of gastroenteritis (a bowel infection), which can be caused by: 1  a virus â such as norovirus or rotavirus. 2  bacteria â such as campylobacter, Clostridium difficile (C.