Supplement Facts - RBC Life

men and women in the United States do not consume adequate levels of vitamin C and about 10% of
adults consume less than half the recommended amount. 210
Vitamin C plays many critical roles in the body. It is a cofactor for several enzymes involved in the
biosynthesis of collagen, carnitine, and several neurotransmitters. 211
Vitamin C supports the immune system as well as heart and eye health. It also supports collagen
structure in bone and connective tissue, including the gums. Vitamin C plays a role in the conversion
of dopamine to norepinephrine, which supports a positive and happy mood. Lack of vitamin C can
often cause fatigue and mood changes. 212
Vitamin C functions as an antioxidant that readily scavenges reactive oxygen and nitrogen species,
such as superoxide and peroxyl radicals, singlet oxygen, ozone, nitrogen dioxide and other free
radicals. In addition to its direct role as an antioxidant, vitamin C can help regenerate vitamin E,
glutathione, beta-carotene, and other antioxidants in the cell membrane and within the cell. 212
Some scientific evidence suggests that consumption of antioxidant vitamins may reduce the risk
of certain forms of cancer. However, the FDA does not endorse this claim because this evidence
is limited and not conclusive.
Vitamin D
The major biologic function of vitamin D is to maintain normal blood levels of calcium and
phosphorous. As part of this role, vitamin D aids in the absorption of calcium, which helps form and
maintain strong bones. 213 Without vitamin D, the bones can become thin, soft, and brittle. 214 Rickets in
214, 215
children and osteomalacia in adults are skeletal diseases that are a result of vitamin D deficiency.
Vitamin D deficiency occurs most often in post-menopausal women and older Americans. Research
shows that a deficiency is associated with a greater incidence of hip fractures. 216 An increased vitamin
D intake from diet and supplements has been associated with reduced bone loss in older women. 216
Vitamin D may also help reduce the risk of osteoporotic fractures in elderly populations with low
blood levels of vitamin D. 217
To protect bone strength and support the absorption of calcium, RBC scientists have included 100%
of the Daily Value for vitamin D in 24Seven Life Essentials.
Vitamin E
Vitamin E is a fat-soluble vitamin that exists in eight different forms. Each form has its own biological
activity, which is the measure of potency or functional use in the body. 218 Alpha-tocopherol is the most
active form of vitamin E in humans, and it acts as a powerful biological antioxidant. 219,220 Some
scientific evidence suggests that consumption of antioxidant vitamins may reduce the risk of certain
forms of cancer. However, the FDA does not endorse this claim because this evidence is limited and
not conclusive. Studies have shown that vitamin E supports heart health and the health of the eyes. 221
W H Y S U P P L E M E N T A T I O N I S V I T A L T O Y O U R G O O D H E A L T H 21