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Comparative Guide to Nutritional Supplements
The definitive reference on the science of supplementation. Find out which top 1% of products earned the NutriSearch five-star quality rating. Hint: Rejuvenation Science Maximum Vitality was one of them. For those interested in optimizing their health and warding off the aging process, this guide is a must! Packed with the latest findings on inflammation, oxidative stress, and degenerative disease, the NutriSearch Comparative Guide to Nutritional Supplements is the definitive resource for anyone serious about optimal nutrition and anti-aging defense. Inside, you will find:
The NutriSearch Comparative Guide to Nutritional Supplements is your roadmap to understanding the remarkable protective powers of vitamins, minerals, and antioxidants. Discover recent scientific evidence that shows supplements can optimize health and retard the aging process. Determine which supplement is best for you and your family, using a scientifically-based approach. Now in it's 4th edition and representing thousands of hours of research, the NutriSearch Comparative Guide to Nutritional Supplements is the way for you to find a quality nutritional supplement that best suits your needs. Make certain you are providing your body with the very best nutritional supplements that science can offer — your health is too precious to compromise.
Evaluation CriteriaThe following 18 criteria were used to evaluate multivitamins in the Comparative Guide to Nutritional Supplements by Lyle MacWilliam. CompletenessLooks to see if the product contains all the Blended Standard nutrients. PotencyLooks to see how much of each nutrient the product contains compared to the Blended Standard amounts. Mineral FormsExamines the molecules that minerals are bound with to help them cross into the bloodstream. Amino acid chelates and organic acid complexes (such as citrates and gluconates) mimic the natural mineral chelates that form during the digestive process. Chelated minerals also appear not to block other minerals from being absorbed, unlike many of the less expensive mineral salts (carbonates, sulphates, and chlorides). Bioactivity of Vitamin ELooks to see if the vitamin E is the natural or synthetic form. Natural forms include d-alpha tocopherol, while synthetic vitamin E, only half as effective, is usually in the form of dl-alpha tocopherol. Gamma TocopherolChecks to see if the product includes the gamma form of vitamin E. Studies show that gamma-tocopherol reduces chronic inflammation and protects against cancers of the colon and prostate. High-dose supplementation with alpha tocopherol alone can reduce the level of gamma tocopherol in body tissues. Antioxidant SupportExamines the nutrients that help to prevent or repair cellular damage caused by oxidation, including vitamin C, vitamin E, vitamin A, beta-carotene, alpha-lipoic acid, lycopene, coenzyme Q10, and selenium. Bone HealthExamines the nutrients that assist in bone remodeling, vital to ward off osteoporosis and other diseases that weaken the skeletal framework. These nutrients include vitamin D, vitamin K, vitamin C, vitamin B6, vitamin B12, folic acid, boron, calcium, magnesium, silicon, and zinc. Heart HealthExamines nutrients that help protect the heart and cardiovascular system including vitamin E, beta-carotene, coenzyme Q10, calcium, magnesium, l-carnitine or acetyl-l-carnitine, procyanidolic oligomers (PCOs), phenolic compounds, and lycopene. Liver HealthExamines those nutrients (including vitamin C, cysteine and n-acetyl-cysteine, selenium, vitamin B2, and vitamin B3) that enhance liver function and optimize levels of glutathione, which help cells fight off toxic challenges. Metabolic HealthExamines those nutrients that help the body handle its daily sugar load, keeping systems responsive to insulin and restoring lost insulin sensitivity. These nutrients include vitamin B3, vitamin B6, vitamin B12, vitamin C, vitamin E, biotin, coenzyme Q10, chromium, magnesium, manganese and zinc. Ocular HealthGood eyesight and prevention of cataracts and macular degeneration require adequate levels of several nutrients, including vitamin C, vitamin E, vitamin A (including beta-carotene), and the carotenoids, lutein and zeaxanthin. Methylation SupportLooks at those nutrients, including vitamin B2, vitamin B6, vitamin B12, folic acid, and trimethylglycine, required for the body to produce methyl donor molecules. Methyl donors help reduce homocysteine levels in the blood, protecting the arteries and nerve fibers. Lipotropic FactorsExamines those nutrients, including choline, lecithin, and inositol, that help remove toxins, including heavy metals like lead. The liver and the brain are two primary targets for the accumulation of fat-soluble toxins. Inflammation ControlExamines the nutrients responsible for reducing inflammation at the cellular level, such as omega-3 oils -- including those found in fish oil (eicosapentaenoic and docosahexaenoic acids or EPA and DHA) -- linoleic acid, gamma-tocopherol, alpha-lipoic acid, vitamin C, flavanoids, procyanidolic oligomers, and the phenolic compounds. Chronic inflammation can lead to serious degenerative disease, including heart disease, cancers and arthritis. Glycation ControlExamines those nutrients (l-carnosine, alpha-tocopherol, gamma-tocopherol, vitamin C, and alpha-lipoic acid) that help slow the progress of many degenerative diseases, including Parkinson's disease, Alzheimer's disease, and cancer. Bioflavonoid ProfileExamines the bioflavonoid family of nutrients, which works throughout the body to attack free radicals and support many bodily functions. These important nutrients include citrus flavonoids, soy isoflavones, quercetin, hesperidin, rutin, bilberry, assorted berry extracts, and PCOs (including resveratrol, grape seed, and pine bark extracts.) Phenolic Compounds ProfileExamines a specific group of phenolic compounds (polyphenolic acids and their derivatives), known to be exceptionally potent defenders against free radicals. Phenols derived from olives, green tea, and curcumin are also known to improve major risk factors for cardiovascular disease, including lowering the impact of inflammation. Potential ToxicitiesExamines those nutrients that can build up in the body, possibly leading to toxic levels with long-term intake. This includes vitamin A and iron. Accidental overdose of iron-containing supplements is, in fact, a leading cause of fatal poisoning in children. Vitamin A is available, safely, as beta-carotene, while adequate iron is easily obtainable for most people from foods.
Nutritional Experts"The authors that we cite are acknowledged within their respective scientific, medical, and naturopathic fields. Each has published one or more works, and each has provided specific recommendations for daily nutritional intakes."
Table of Contents
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Comparison of 5-Star Rated Multivitaminsin the 2007 Comparative Guide to Nutritional Supplements by Lyle MacWilliam
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