Amino AcidsAmino acids are critical to life, and have a variety of roles in metabolism. One particularly important function is as the building blocks of proteins, which are linear chains of amino acids. Amino acids are also important in many other biological molecules, such as forming parts of coenzymes, as in S-adenosylmethionine, or as precursors for the biosynthesis of molecules such as heme. Due to this central role in biochemistry, amino acids are very important in nutrition.
When taken up into the body in the diet, the 20 standard amino acids are either used to synthesize proteins and other biomolecules or oxidized to urea and carbon dioxide as a source of energy. The oxidation pathway starts with the removal of the amino group by a transaminase, the amino group is then fed into the urea cycle. The other product of transamidation is a keto acid that enters the citric acid cycle. Glucogenic amino acids can also be converted into glucose, through gluconeogenesis.
Of the 20 standard amino acids, 8 are called essential amino acids because the human body cannot synthesize them from other compounds at the level needed for normal growth, so they must be obtained from food. However, the situation is quite complicated since cysteine, taurine, tyrosine, histidine and arginine are semiessential amino acids in children, because the metabolic pathways that synthesize these amino acids are not fully developed. The amounts required also depend on the age and health of the individual, so it is hard to make general statements about the dietary requirement for some amino acids.
Essential: Isoleucine Leucine Lysine Methionine Phenylalanine Threonine Tryptophan Valine Non Essential: Alanine Arginine Asparagine Aspartate Cystine Glutamate Glutamine Glycine Proline Serine Tyrosine Histadine
| Antioxidants...Antioxidant is a molecule capable of slowing or preventing the oxidation of other molecules. Oxidation is a chemical reaction that transfers electrons from a substance to an oxidizing agent. Oxidation reactions can produce free radicals, which start chain reactions that damage cells. Antioxidants terminate these chain reactions by removing free radical intermediates, and inhibit other oxidation reactions by being oxidized themselves. As a result, antioxidants are often reducing agents such as thiols or polyphenols.
Although oxidation reactions are crucial for life, they can also be damaging; hence, plants and animals maintain complex systems of multiple types of antioxidants, such as glutathione, vitamin C, and vitamin E as well as enzymes such as catalase, superoxide dismutase and various peroxidases. Low levels of antioxidants, or inhibition of the antioxidant enzymes, causes oxidative stress and may damage or kill cells.
|
ArthritisArthritis (from Greek arthro-, joint + -itis, inflammation; plural: arthritides) is a group of conditions involving damage to the joints of the body. Arthritis is the leading cause of disability in people older than fifty-five years.(citation needed)
There are different forms of arthritis and each has a different cause. The most common form of arthritis, osteoarthritis (degenerative joint disease) is a result of trauma to the joint, infection of the joint, or age. Emerging evidence suggests that abnormal anatomy might contribute to the early development of osteoarthritis(citation needed). Other arthritis forms are rheumatoid arthritis and psoriatic arthritis, autoimmune diseases in which the body attacks itself. Septic arthritis is caused by joint infection. Gouty arthritis is caused by deposition of uric acid crystals in the joint, causing inflammation. There is also an uncommon form of gout caused by the formation of rhomboid crystals of calcium pyrophosphate. This gout is known as pseudogout.
| Digestiondigestion plays an enormous role in the general wellbeing of good health
|
Essential Fatty AcidsEssential fatty acids, or EFAs, are fatty acids that humans and other animals must ingest for good health
because the body requires them but can't make them from other food
components. The term refers to fatty acids required for biological
processes, and not those that only act as fuel.
| Freight |
Functional Foodsvital greens, spirulina, acai berries, superfoods
| Grinding MillsVitamin Select Grinding Mill range. |
Herbal ProductsOur Herbal range includes Brands from THOMPSONS NUTRITION, FUSION HEALTH, HERBS OF GOLD and MICROGENICS
| Immune SupportThe immune system prevents infections taking hold, and helps overcome
those that do. It also catalogues infectious organisms so that the
body is better equipped to fight them if they're ever encountered again.
The components of the immune system range from simple barrier defences
(for example the tiny hairs and
mucus secretions of the nostrils) to sophisticated cells that recognise
and engulf invading organisms. |
Men's HealthVitamin Select Men's Health range. | MineralsVitamin Select Minerals range. |
Omega 3 Fish Oilomega 3 fish oil is used for many areas of good health including cardiovascular, arthritis, brain function and inflammation areas.The health benefits of the long-chain omega-3 fatty acids — DHA and EPA
omega-3 — are the best known. These benefits were discovered in the
1970s by researchers studying the Greenland Inuit
Tribe. The Greenland Inuit people consumed large amounts of fat from
seafood, but displayed virtually no cardiovascular disease. The high
level of omega-3 fatty acids consumed by the Inuit reduced triglycerides, heart
rate, blood pressure, and atherosclerosis. | Other SupplementsVitamin Select Other Supplements range. |
Skin and Hair CareVitamin Select Skin and Hair Care range. | Sports Nutrition...Vitamin Select Sports Nutrition range. |
StressWe feel stressed when there is a conflict between the demands we face
and our ability to cope with them, and especially when we feel that we
don't have the time, resources or skills to deal with our commitments
and responsibilities, or that factors in our lives are outside of our
control. Living or working in an environment that is emotionally or
physically challenging may also be a source of stress. | Vitamins...Vitamin Select Vitamins range. |
Weight LossVitamin Select Weight Loss range
| Women's Healthmenopause, natural herbal hormone help, libido. Products to help women with everyday life and to live life at it's fullest
|