BIBC 120 Lecture Notes - Lecture 3: Dietary Supplement, Dietary Fiber, Osteoporosis
24 May 2018
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BIBC 120 Week 1 Lecture 3 Notes (1/12/17):
Nutritional science definitions
Dietary Reference Intakes and food labels
Assessing nutritional claims
FDA Mandates Changes to Nutrition Facts Label in 2016
• update serving sizes
• ilude added sugas
• greater emphasis on overall energy balance; less emphasis on Calories from total fat
• Values for vitamin D and potassium will now be required (along with calcium and iron)
• Values for vitamins A and C will no longer be required
FDA Changes to Nutrition Facts Label Compliance Dates
• Food manufacturers with more than $10 million in annual sales: originally July 2018;
proposed rule to extend this to July 2020
• Food manufacturers with less than $10 million in annual sales: originally July 2019;
proposed rule to extend this to July 2021
The FDA also Regulates Nutritional Claims on Food Labels
A. Nutrient content claims
B. Health claims
C. Structure/function claims
Dietary supplements = vitamin and mineral supplements, herbs, amino acids, enzymes,
metabolites
A. Nutrient Content Claims
• Redued Caloies Lo Fat Cholesteol Fee
• Describe amount of nutrient or Calories per serving
• Pre-established by FDA based on fixed standards
• Foods and dietary supplements
B. Health Claims
• Claim about how product may affect risk for disease or health related condition
• Two types of health claims, regular and qualified
1. Regular health claims
i. Supported by considerable scientific evidence—stadad is sigificant
sietifi ageeet, seeal published studies
ii. Are pre-approved by FDA or authorized by governmental scientific body
(NAS)
iii. Pre-approved claims may be used with dietary supplements
iv. EX: Adeuate aliu thoughout life, as pat of a ell-balanced diet,
may reduce the risk of osteopoosis late i life. Diets lo i fat ad
ih i solule fie a edue the isk of heat disease.
2. Qualified health claims
i. Much lower standard of evidence—some credible evidence but does not
eet the sigifiat sietifi ageeet stadad, oe or two studies
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Bibc 120 week 1 lecture 3 notes (1/12/17): The fda also regulates nutritional claims on food labels: nutrient content claims, health claims. Health claims in advertising: not regulated by fda like food label. Assessing the validity of nutritional claims things to consider: what is the source of the information, and how credible is that source, peer-reviewed journal, public-health organizations. Is the information provider trying to sell you something: is there scientific evidence supporting the claim, ex: eating broccoli may prevent cold and flu infections. Possible sources of scientific evidence: testimonials no, survey correlating amount of broccoli eaten and incidence of cold and flu. Yes: article in biochem journal reporting isolation of phytochem from broccoli that enhance response of immune cells to flu virus -yes, randomized clinical trial - yes, internet blog -no. Benefits: comparison of results using different methodologies; larger population/sample size: review article summary of current research by an expert in that field.
