Natural C Plus 500 tablets from Douglas Laboratories
provides 500 mg of Vitamin C with rose hips and an
additional amount of bioflavonoid complex.
Vitamin C (ascorbic acid) has numerous biological
functions. Foremost, it is essential for the synthesis of
collagen and glycosaminoglycans which are the
building materials of all connective tissues, such as
skin, blood vessels, tendons, joint cartilage and bone.
Vitamin C is the required coenzyme for two groups
of enzymes that catalyze the crosslinking of collagen
fibers - lysyl hydroxylases and prolyl hydroxylases.
As such, vitamin C is essential for normal wound
healing and capillary health. It also participates in the
biosynthesis of carnitine, serotonin, and certain
neurotransmitters, including norepinephrine.
Vitamin C is among the most powerful antioxidants
in humans and animals. It is a water-soluble, chainbreaking
antioxidant that reacts directly with
superoxide, hydroxyl radicals, and singlet oxygen.
Laboratory studies show that vitamin C completely
protects lipids in plasma and low-density lipoprotein
(LDL) against atherogenic peroxidative damage. In
addition, vitamin C interacts with glutathione and
alpha-lipoic acid, and regenerates vitamin E. The
antioxidant functions of vitamin C appear to have
clinical significance in providing protection from free
radical damage to the eyes, lungs, blood and the
Vitamin C is absorbed in the small intestine by a
sodium-dependent transport process that is intake
dependent. At normal dietary intakes of 60 to 100
mg, up to 80 or 90% of the vitamin C is absorbed. At
higher intakes, absorption becomes less efficient.
Absorption efficiency and vitamin C utilization may
be greatly enhanced during conditions of
physiological stress, such as trauma or infection.
Bioflavonoids (also called flavonoids) are a class of
phytochemicals that are potent antioxidants, which
scavenge many potentially damaging free radicals.
The bitter tasting flavanones hesperidin and naringin, from the white albedo layer of citrus peels, have been
shown to extend the nutritional functions of vitamin C.
Bioflavonoids such as rutin can also support the
health of the body’s circulatory system by helping
maintain capillary blood flow and proper vascular
permeability, integrity, and resiliency.
Adults take 1 tablet daily with meals or as directed by
Store in a cool, dry place, away from direct light.
Keep out of reach of children.