Brewer's yeast (Saccharomyces cerevisiae) is an inactive yeast,
meaning the yeasts have been killed and have no leavening power. It is
the yeast remaining after beer making. It is used as a nutrient
supplement to increase the intake of B vitamins. Brewer's yeast comes
powdered (the most potent form), in flakes (best for health shakes),
and in tablets.
Brewer's yeast and torula yeast are frequently confused with
nutritional yeast. Nutritional yeast is a primary grown food crop,
which means it is cultivated specifically for use as a nutritional
supplement. This yeast is dried at higher temperatures than baking
yeast, rendering it inactive. Unlike the live yeasts used in
breadmaking and brewing,...
Histidine is an essential amino acid during infancy, and its
synthetic pathways in older children and adults are poorly understood.
According to "Nelson's Textbook of Pediatrics" the clinical signs of a
lack of the enzyme which acts in the metabolism of histadine can
include impaired speech, growth retardation or mental retardation.
However, whether these findings are actually related to lack of
histidine is unclear since children who are defficient in histidine can
be completely normal.
The importance of the amino acid histidine lies in the fact that the
body uses it to manufacture histamine, and histamine is responsible for
a wide range of physiological processes. It is common knowledge that
L-Isoleucine is a neutral, genetically coded amino acid. It is
essential in human nutrition. Isoleucine is found in especially high
amounts in meats, fish, cheese, most seeds and nuts, eggs, chickens and
lentils. In the human body Isoleucine is concentrated in the muscle
tissues. Isoleucine is necessary for hemoglobin formation and in
stabilizing and regulating blood sugar and energy levels. A deficiency
of isoleucine can produce symptoms similar to those of hypoglycemia.
It is one of several essential amino acids needed in the diet; human
beings cannot synthesize it from simpler metabolites. Young adults need
about 20 mg of this amino acid per day per kg (or about 8...
Fats, such as the fats in milk, need to be digested by your
body. They are broken down into fatty acids and glycerol by an enzyme
called lipase. Gastric lipase, secreted by the stomach lining, has a pH
value for optimal activity around neutrality and would appear,
therefore, to be essentially inactive in the strongly acid environment
of the stomach. It is suggested that this enzyme is more important for
infant digestion since the gastric pH in infancy is much less acid than
later in life. Most lipid digestion in the adult occurs in the upper
loop of the small intestine and is accomplished by a lipase secreted...
The pancreas is a large gland that lies in the upper abdomen, behind the lower part of
the stomach. It serves two major functions. One is to produce the hormones insulin and
glucagon, which help regulate metabolism. The other is to produce pancreatic juice, a
secretion delivered into the upper part of the small intestine (duodenum), where it aids
Pancreatin is a mixture of the fat dissolving enzyme, lipase, the protein enzymes such
as protease, and those that break down carbohydrates like amylase. The enzymes in
pancreatin may come from pork or beef. If you are vegetarian or have allergies...
Pyruvate (also known as pyruvic acid) occurs naturally in the body and is an end
product of the metabolism of sugar or starch. It is formed from the sugar glucose (blood
sugar) during the process known as glycolysis. Glycolysis is one of the energy generating
pathways that our bodies use every second of everyday to make ATP (adenosine triphosphate)
- our "ultimate" energy molecule. The molecule ATP provides us with all the energy we need
to do everything from exercising and washing the car, to reading these very words.
Basically, when you make energy in glycolysis, you start with the sugar...