550 likes | 786 Views
Dietary Supplements & Herbs: . Just because they’re natural doesn’t mean they’re safe!. The next big miracle!. Supplements: a booming industry!. spent on natural products (excluding vitamins and minerals) of people using complementary therapy of people do not tell their doctors of use.
E N D
Dietary Supplements & Herbs: Just because they’re natural doesn’t mean they’re safe!
Supplements: a booming industry! spent on natural products (excluding vitamins and minerals) of people using complementary therapy of people do not tell their doctors of use $15 BILLION 52% 70+%
Objectives What you need to know: • Definitions • Supplements in the marketplace • Are supplements safe? • How to select supplements • Resources
Definitions The following definitions are provided by the Office of Dietary Supplements (National Institutes of Health)
Dietary ingredients • Vitamins (“chemicals necessary for life”) • Minerals • Herbs or other botanicals • Amino acids • Other substances or their parts • Enzymes, organ tissues, extracts, concentrates, metabolites, etc
New dietary ingredients • A dietary ingredient not sold in the US in a dietary supplement before October 15, 1994 • Example • SAM-e (2001)
What is a dietary supplement? • A product that: • Is intended to add to the diet • Contains 1 or more dietary ingredients • Is intended to be taken by mouth • Capsule • Gelcaps • Tablet • Liquid • Teas, Extracts, Tinctures, Powders, etc • Is labeled on the front panel as a dietary supplement
What are herbs? • Subsets of botanicals • Plant, or plant part valued for its medicinal or therapeutic properties, flavor and/or scent • Other names: • Botanical products • Herbal products • Phytomedicines • Herbs are “Dietary supplements” Office of Dietary Supplements, National Institutes of Health
Forms of herbs Turmeric • Fresh or dried products • Liquid or solid extracts • Tablets • Capsules • Powders • Tea Chamomile tea
Common preparation: Tea • Also called an infusion • Made by • Adding boiling water • To fresh or dried botanicals • Steeping them • Use hot or cold
Common preparation: Decoction • Roots, bark and berries • Require more forceful extraction • Simmered in boiling water longer than tea • Use hot or cold
Common preparation: Extract • Made by: • Soaking botanical in a liquid that removes specific types of chemicals • Liquid used • As is • Or evaporated to make dry extract • Used in capsules and tablets
Common preparation: Tincture • Made by: • Soaking a botanical in a solution of • Alcohol and water • Sold as liquids • Used for concentrating and preserving botanicals • Made in different strengths • Expressed as botanical-to-extract ratio
Dietary supplements in the marketplace Regulations
Regulations, or lack there ofDSHEA (1994 Dietary Supplement Health and Education Act) • Regulated by FDA (US Food and Drug and Administration) • As foods • But differently FROM foods and drugs • “Regulations” determined by intent of usage 1994 The year that the FDA “lets their hair down”! Herbal Supplement Industry becomes deregulated
Approval process: Drugs • Needpremarket approval • Safety and effectiveness must be proven BEFORE market • Monitored for safety • Can be recalled
Approval process: food products/additives • Need premarket approval
Approval process: supplements • Do not need premarket approval • Safety and effectiveness evaluated AFTER marketing • Manufacturers submit “proof” before marketing to FDA • Not required, however • Unsafe products not allowed to be marketed • Takes years to recall
Labeling must be • Truthful • Not Misleading • FDA can remove product otherwise • Deceptive? CSPIE is suing Coca-Cola for deceptive health claims: • Reduce risk for chronic disease • Promote healthy joints • Support immune function
Claims on supplements • CANNOT claim • Diagnose, cure, lessen, treat or prevent a disease • CAN claim • Health claim • Nutrient content claim • Structure/function claim
Health claims • Describes a relationship between food, food component, dietary supplement ingredient and reducing RISK of a disease or health related condition
Nutrient content claims • Describes the relative amount of a nutrient or dietary substance in a product
Structure/function claims • Describes how a product may affect the organs or system of the body • Cannot mention any specific disease • NO FDA approval required BUT • FDA must receive text within 30 days of claim • MUST have a disclaimer
Disclaimer All claims must include this statement: “This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease”
Research shows…. • YES! Some supplements are effective! • Folic acid (birth defects) • Calcium (bone) • Vitamin D (bone, immune system, cancer, etc), etc • Promising • St Johns Wort (mild to moderate depression) • Omega-3 (heart), etc
BUT (and there’s always a but!) • Not enough research conducted on many others • Issues at stake: Public TRUST • Integrity • Effectiveness • Purity • Safety • Natural=safe • $$$$$ = OK! You get what you pay for….RIGHT? “A deregulated industry is like allowing a fox in the hen house” -Global Industry Analysts
Not enough research • New field…need more time • “Fence-sitters” • Downright dangerous (and widely available) • Aristolochic acid • Kava • Yohimbe • Bitter orange • Glandular extracts, etc
Safety • Most important • Difficult to assess • Not enough studiesNO studies in some populations • Interactions: • Food-herb • Drug-herb • Multiple herb
Purity, integrity • Labels not always accurate with ingredients • Contamination (lead, arsenic, etc) • Unidentified ingredients • The strength not always accurate
Unsubstantiated Claims • False advertising • This is why we have a disclaimers on supplements!
Overdosing issues • Vitamins and minerals well studied • Most water-soluble OK • Fat soluble and minerals can be dangerous • Other supplements not studied well • What is too high? • No %DV • Combinations increase risks
Supplements NOT the same as food! • Food contains active and unknown ingredients that may synergistically interact for health benefits • Also contain fiber • Flavor • Supplements many times contain active ingredients only of functional foods • But what about the ones not discovered yet?
New FDA rules • GMP: Good Management Practices • Manufacturers will be required to evaluate identity, purity, strength and composition of products • What will this do? • That supplements contain what the labels claim • Free of contaminants • However…. • Risks still remain • FDA pre-market approval not required
Look for standardized herbal supplements • The U.S. Pharmacopeia's "USP Dietary Supplement Verified" seal • indicates the supplement has met certain manufacturing standards. • Others • Consumerlab.com • Good Housekeeping • NSF International • GMP Helps you ensure you are getting a PURE product as opposed to a contaminated product (free of lead, mercury, or drugs)
Buy single herb products This product has 16 herbs • Need to show quantity of each herb • Beware of numerous and unknown amounts of mixtures This product has one
Multivitamins • Are a better choice than single vitamin or minerals • Vitamins and minerals work TOGETHER for better absorption • Stick with major brands • Talk to doctor or nutritionist before taking individual
Beware of outrageous claims • If it’s too good to be true, then it probably is • Such as • Can treat or cure disease • A “cure-all” • “Totally Safe” • “No side effects” • “Natural” doesn’t mean “safe”
Beware of foreign supplements • European and Canadian supplements are highly regulated and standardized but • Not other countries
Discuss with doctor/pharmacist • ALWAYS tell health care professional all supplements you are taking • ASK before you take supplements • DISCUSS name brands
Be Careful if • You are: • Younger than 18 • Older than 65 • Pregnant or breast-feeding • Taking OTC or Rx medications • Having surgery soon
Spend your money wisely • Just because they’re expensive doesn’t mean they’re better! • Sometimes cheaper to get medicine than supplement • Is it really helping?
Report adverse side effects • FDA MedWatch • 1-800-FDA-1088(toll-free phone number)