Edited by Tod Cooperman, MD., William Obermeyer, Ph.D. and Densie Webb, R.D., Ph.D. (EN's Associate Editor)

ConsumerLab's guide provides concise, reliable reviews of  20 supplements, from B vitamins to valerian, including information on ingredients, dosages, quality concerns, shopping tips and cautions. You'll find answers to questions like "Should you buy Vitamin C with rosehips?," "Which forms of calcium are best?" and "How much fish oil should--or shouldn't--you take?"  The guide's main attraction is its listing of "approved-quality" products--those tested by Consumer Lab and awarded their seal of approval for quality.  The book lists hundreds of brands, revealing which live up to claims and quality standards. such as purity and disintegration.  As the editors comment, results of CL's testing "were shocking"--about 25% of products tested did not pass, often because they contained too little active ingredient.  A must-have guide for anyone using dietary supplements!