Consumer Issues



Consumer Issues









The proliferation of cyberspace information—and misinformation—gives millions of Americans ready access to nutritional concepts. Advances in food technology have brought us functional foods, bioengineering, and food irradiation as well as new questions about food safety and optimal nutrition. The ever-evolving science of nutrition has progressed from three square meals a day and a well-rounded diet to MyPlate. This is an era that presents old and new challenges for health professionals.

This chapter focuses on a variety of consumer issues, including nutrition misinformation, food labels, dietary supplements, functional food, organic foods, foodborne illnesses, biotechnology, antibiotics in the food supply, and irradiation.

Functional Foods commonly (not legally) defined as foods that provide health benefits beyond basic nutrition.

Food Irradiation treatment of food with approved levels of ionizing radiation for a prescribed period of time and a controlled dose to destroy bacteria and parasites that would otherwise cause foodborne illness.


CONSUMER INFORMATION AND MISINFORMATION

The role of food has shifted from simply a means to prevent deficiency diseases to a tool for optimizing health, preventing chronic disease, and delaying aging. Several factors are driving this “food as medicine” paradigm, including



  • Consumers’ interest in managing their own health


  • Increasing age of the population


  • Escalating health-care costs


  • Technologic advances, such as biotechnology


  • The obesity epidemic


  • Evidence-based science that links healthy eating patterns to a reduced risk of chronic disease



Combating Misinformation

Nutrition misinformation abounds. “Breaking news” stories may be little more than “spin” (a favorable slant) or incomplete coverage of preliminary results from scientific studies, which are often discounted later as more research is completed. The distinction between correlation and causation may be blurred, and inappropriate conclusions may be made from study results. Features or articles that fail to identify how much or little of a food should be eaten, how often it should be eaten, or to whom the advice applies do not give consumers enough information to appropriately judge what the study means to them personally. Other types of media inaccuracy include generalizing a study to a broader population than was actually studied and overstating the size of the effect. And although the information available on the Internet is vast, there are no regulatory safeguards in place to ensure that the information is accurate. Junk science coexists with legitimate data. It is the responsibility of each individual consumer to evaluate the reliability of information (Box 9.1).


Many people treat nutrition as a belief system rather than a science, formulating opinions in response to emotional appeals rather than scientific evidence. Others assume that anything that appears in print form (e.g., in a book, magazine, or newspaper)
is accurate and not everyone recognizes the shortcomings of the Internet. If clients’ beliefs are unsupported but harmless, you may risk alienating them for no reason by trying to convince them they’re misinformed. Determine how much of an emotional investment the client has in believing harmless misinformation. Be aware that casual or judgmental dismissal of misinformation can cause clients to become defensive and distrustful; clients may conclude that you are not as up-to-date as they are about nutrition, and they may reject you as a credible reference.




Food Labels

Food labels provide a wealth of information consumers can use to make better food choices. Information provided on a label includes “Nutrition Facts” and an ingredient list; nutrient content claims, health claims, and structure/function claims may also be found.


Nutrition Facts

The “Nutrition Facts” panel has been required on food labels since 1993. With the exception of the addition of trans fat content in 2006, the original “Nutrition Facts” label was unchanged since its inception. In spring of 2016, the U.S. Food and Drug Administration (FDA) finalized approval of an updated “Nutrition Facts” panel that reflects current dietary recommendations, national survey data, and evidence on the role of eating patterns in health promotion and disease prevention (FDA, 2016a, 2016b). Most manufacturers will be required to use the new label by July 26, 2018. Figure 9.1 features the original “Nutrition Facts” label and the new version. Changes are summarized below.


Greater Understanding of Nutrition Science

To reflect what is currently known about nutrition and health, the new “Nutrition Facts” label

Percent Daily Value (%DV) Amount of nutrients to consume, or not exceed, which is used on both food and dietary supplement labels. The %DV refers to the percentage of the nutrient in one serving of food based on a 2000-calorie diet. The label indicates what percentage of the daily goal a serving of food contributes.



  • Requires declaration of added sugars in grams and as the percent daily value (%DV), based on the recommendation that the daily intake of calories from added sugars not exceed 10% of total calories consumed. Added sugars were previously not included.


  • Updates the DVs for sodium, dietary fiber, and vitamin D based on newer scientific evidence



  • Requires the actual gram amount and %DV of potassium and vitamin D on the label because they are nutrients of public health significance. Iron and calcium content will continue to be required. Vitamin A and C content will not be required because deficiencies of these nutrients in the general population are not common.


  • Removes “calories from fat” based on evidence that the type of fat consumed is more important than total fat intake






Figure 9.1“Nutrition Facts” label. (Source: U.S. Food and Drug Administration. [2016a]. Changes to the Nutrition Facts label. Available at http://www.fda.gov/food/guidanceregulation/guidancedocumentsregulatoryinformation/labelingnutrition/ucm385663.htm. Accessed on 9/19/16.)


Updated Serving Sizes and New Requirements for Certain Package Sizes

To reflect how people currently eat and drink the new label



  • Updates serving sizes to correspond to the amount people actually eat now, not what was typically consumed in the early 1990s. By law, serving sizes must be based on amounts people eat, not what the “should” eat. For instance, the reference amount for a serving of soda is changing from 8 to 12 oz.


  • Requires that packaged foods, including beverages, that are typically consumed in one sitting be labeled as a single serving; therefore, calories and nutrient information will be for the entire package. For instance, a 20-oz soft drink, typically consumed in one sitting, will be labeled as one serving, not more than one serving.


  • Requires “dual column” labels on certain larger packages that could be consumed in either one or multiple sittings, such as a 24-oz bottle of soft drink or a pint of ice cream. One column is per serving and one per package.


Refreshed Design

In order to ensure consumers have access to information they need to make informed decisions, the label has been redesigned. Changes to the design include



  • The iconic looks of the label remain but with subtle changes. The font size will increase for calories, servings per container, and serving size.


  • The number of calories and the serving size declaration will be in bold type to emphasize their importance in public health concerns such as obesity, diabetes, and cardiovascular disease.



  • In addition to the %DV, the gram amounts of required vitamins and minerals are included. Declaring the gram amount for other vitamins and minerals is voluntary.


  • An updated footnote more clearly explains the meaning of the %DV. It will read “The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2000 calories a day is used for general advice.”



Ingredient List

Ingredients are listed in descending order by weight. The further down the list an item appears, the less of that ingredient is in the product. This information gives the consumer a relative idea of how much of each ingredient is in a product but not the proportion. Manufacturers are required to clearly state if a food product contains any ingredients that contain protein from the eight major food allergens: milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, and soybeans.

Nutrient Content Claims label descriptions of the amount of a nutrient or substance provided in a food or beverage.

Health Claim a statement that describes a relationship between a food, food substance, or dietary supplement ingredient and a reduced risk of disease or a disease-related condition.

Structure/Function Claims statements identifying relationships between nutrients or dietary ingredients and a body function.


FDA-Allowed Claims

The FDA allows three types of claims on food and dietary supplement labels: nutrient content claims, health claims, and structure/function claims.


Nutrient Content Claims

Terms such as “low,” “free,” and “high” describe the level of a nutrient or substance in a food. The terms are legally defined and so they are reliable and valid. Nutrient claims may also compare the level of a nutrient to that of comparable food with terms such as “more,” “reduced,” or “light.” Box 9.2 defines the terms used in nutrient claims.





Health Claims

A health claim proposes a relationship between a food or substance in a food and a disease or health-related condition. There are two types of health claims; they differ in the degree of scientific evidence that supports the claim. Unqualified health claims, also known as “authorized health claims,” are supported by significant scientific agreement (SSA) among experts who have examined the evidence (Box 9.3). Foods that make one of these claims also meet other requirements: (1) They do not exceed specific levels for total fat, saturated fat, cholesterol, and sodium and (2) they contain at least 10% of the Daily Values (DVs) (before supplementation) for any one or all of the following: protein, dietary fiber, vitamin A, vitamin C, calcium, and iron. Additional health claim criteria are specific for the claim made. For instance, the claim regarding calcium and osteoporosis is only allowed on foods that have at least 20% DV for calcium. These claims are referred to as unqualified health claims because they do not require a qualifying statement about the strength of evidence supporting the claim.

The FDA allows certain qualified health claims when the relationship between food, a food component, and a supplement is not strong enough to meet SSA or published authoritative standards. Specific FDA-approved labeling language must be used for qualified health claims, and companies must petition the FDA for prior written permission to make a qualified health claim. The weakest claim is as follows: “Very limited and preliminary scientific research suggests [health claim]. The FDA concludes that there is little scientific evidence supporting this claim.” Examples of qualified health claims are listed in Box 9.4.

Unqualified Health Claim A type of health claim supported by significant scientific agreement.

Daily Values (DVs) are reference values established by the FDA for use on food labels. For some nutrients (e.g., sodium), they are amounts that should not be exceeded; for others (e.g., fiber), they are amounts to strive toward. For nutrient intakes that are based on the percentage of calories consumed, 2000 calories is the standard used.

Qualified Health Claim A type of health claim that must be qualified by a statement that specifies the degree of scientific evidence that supports it. These claims are based on the weight of evidence but are not considered to be backed by significant scientific agreement.


Structure/Function Claims

Structure/function claims offer the possibility that a food may improve or support body function, which is a fine distinction from the approved health claims that relate a food or nutrient to a disease. An example of a disease claim needing approval is “suppresses appetite to treat obesity,”
whereas a function claim that does not need approval is “suppresses appetite to aid weight loss.” These structure claims had previously been used primarily by supplement manufacturers with the disclaimer that “These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.” Structure/function claims are now appearing on food labels and do not require a disclaimer. Unlike health claims that can only appear on foods that meet other nutritional criteria (e.g., they cannot be high in fat, cholesterol, sodium), structure/function claims can appear on “junk” foods. Structure/function claims do not require FDA approval, so there may be no evidence to support the claim. See Box 9.5 for structure/function claims that do not need prior approval.



Industry-Originated Labeling

Over the last decade, many food manufacturers and retailers have added a variety of nutrition symbols and rating systems to the front of food packages to show how nutritious they are. For instance, the American Heart Association Heart-Check utilizes a single symbol to guide consumers toward heart healthy choices. The Whole Grain Council’s Whole Grain Stamp is a front-ofpackage symbol used to indicate the presence of a food group or ingredient. Although intended to simplify choices for consumers, having too many types of front-of-package labels may actually increase confusion.








Figure 9.2Facts Up Front.

The Grocery Manufacturers Association and Food Marketing Institute have created Nutrition Keys, a voluntary front-of-package labeling initiative known as Facts Up Front. In a standardized format, four basic icons provide information from the “Nutrition Facts” panel on calories, saturated fat, sodium, and sugar. All four basic icons must appear. Some products may add up to two optional icons of nutrients that have positive health benefits—namely, potassium, fiber, protein, vitamin A, vitamin C, vitamin D, calcium, and iron (Fig. 9.2). Smaller packages may limit the icon to just calories. The icon began appearing in the marketplace in late 2011. Facts Up Front is a complement to the “Nutrition Facts” label, not a replacement for it.

The FDA views the Nutrition Keys basic icons (calories, saturated fat, sodium, and total sugar content) and optional icons as nutrient content claims subject to all FDA requirements and regulations. However, the FDA intends to exercise enforcement discretion in regard to certain aspects of nutrition labeling regulations to facilitate implementation of the Nutrition Keys program in an effort to provide consumers ready access to nutrient content information (FDA, 2015).


CONSUMER-RELATED INTERESTS AND CONCERNS

As knowledge of nutrition in health and disease continues to grow, consumers interested in self-directed care look to food and nutrition-related strategies to ensure health and wellness. Some of those strategies may include using dietary supplements, choosing functional foods, and opting for organic foods. Consumer concerns include foodborne illness, biotechnology, antibiotics, and irradiation.


Dietary Supplements

Dietary supplements represent a broad range of products that contain one or more dietary ingredients, including vitamins and minerals; specialty supplements, such as amino acids, omega-3 fatty acids, fiber, and probiotics; herbal supplements, such as cranberry, garlic, and Echinacea; and sports nutrition/weight management supplements, such as whey protein, energy drinks, and hydration drinks. They are intended to add to (supplement) the diets of some people, not to replace a healthy diet. Supplements are taken by mouth as a capsule, tablet, lozenge, liquid, or tea. Labeling laws require the front label to state that the product is a dietary supplement. Figure 9.3 depicts a supplement label.

Herbal Supplements supplements from plants or parts of plants used to alleviate health problems or promote wellness.

The National Institutes of Health, Office of Dietary Supplements (2016) estimates Americans spent $36.7 billion on dietary supplements in 2014. The top 10 selling herbal dietary supplements in food, drug, and mass marketing retail channels in the United States are summarized in Table 9.1.

Whereas the functions and requirements of vitamins and minerals are fairly well understood, scientific research is lacking for many herbal products. Many people mistakenly believe “natural” is synonymous with “safe.” They assume that herbs must be harmless because they come from flowers, leaves, and seeds. In truth, herbs are not guaranteed to be safe or effective.

The FDA began requiring dietary supplements be produced using current good manufacturing practices in 2007. For the first time, identity, purity, strength, and composition of dietary
supplements were required to be accurately reflected on the label. This was a significant step in protecting consumers by ensuring supplements






Figure 9.3Supplement label. (Source: Council for Responsible Nutrition. [2014]. Dietary supplement labeling. Adapted from https://www.crnusa. org/sites/default/files/pdfs/DS-RegsLabel-0613.pdf. Accessed on 1/5/17.)



  • Meet quality standards for manufacturing processes


  • Are free of contaminants or impurities such as natural toxins, bacteria, pesticides, glass, lead, or other substances


  • Are manufactured to ensure identity, purity, strength, and composition


  • Have an accurate listing of ingredients


Supplement Regulation

In their medicinal sense, herbs are technically unapproved drugs; approximately 30% of drugs used today originated from plants (e.g., paclitaxel, aspirin, digoxin). In the United States, dietary supplements are regulated by the FDA as foods, which means they do not have to meet the same standards as drugs and over-the-counter medications. Supplements differ greatly from conventional drugs in how they are marketed and regulated.


Safety and Effectiveness Are Not Proven

Before a drug can be marketed, the FDA must authorize its use based on the results of clinical studies performed to determine safety, effectiveness, possible interactions with other substances, and

appropriate doses. In contrast, the regulations regarding dietary supplements are lax. Supplement ingredients sold in the United States before October 15, 1994, are assumed to be safe and so do not require FDA review for safety before they are marketed. Dietary supplement manufacturers that want to market a new dietary ingredient must submit information to the FDA that supports their conclusion that reasonable evidence exists that the product is safe for human consumption. Manufacturers do not have to prove to the FDA that dietary supplements are safe or effective; however, they are not supposed to market unsafe or ineffective products and are required to report all serious dietary supplement adverse events to the FDA.









Table 9.1 2012 Top 10 Selling Herbal Supplements in the United States*: What Science Says and Possible Side Effects and Cautions

















































Herb


What Science Says


Side Effects and Cautions


Cranberry


Some evidence that it may help prevent urinary tract infections; has not been found to effectively treat urinary tract infections


May help impair the ability of Helicobacter pylori to live in the stomach


May help reduce dental plaque


Appears safe; excessive intake could cause gastrointestinal (GI) upset or diarrhea


Some indications that it should be used cautiously by people on anticoagulants, medications that affect the liver, and aspirin


Garlic


Some evidence suggests it may slightly reduce serum cholesterol levels and also slow the development of atherosclerosis.


May lower blood pressure, especially in people with hypertension


No clinical trials have examined the effect of garlic on lowering cancer risk.


Safe for most adults


Side effects include breath and body odor, heartburn, GI upset, and allergic reactions; side effects are more common with raw garlic


May increase prothrombin time and enhance the effects and adverse effects of anticoagulant and antiplatelet medications


Interferes with the effectiveness of saquinavir, a drug to treat HIV


Saw palmetto


Has not been found to reduce urinary symptoms associated with benign prostatic hypertrophy or any other conditions


Well tolerated; may cause stomach discomfort in some


Soy


Daily intake may slightly lower low-density lipoprotein (LDL) cholesterol.


May reduce hot flashes in postmenopausal women but study results are inconsistent


Not enough evidence to determine if it is effective for any other health issues


Is considered safe for most people when used as a food or taken for short periods of time as a supplement


The safety of long-term use of soy isoflavones has not been established.


Its role in breast cancer risk is uncertain.


Ginkgo biloba


Not effective in lowering the overall incidence of dementia and Alzheimer disease in the elderly


Has not shown significant benefit for intermittent claudication


Conflicting evidence that it helps tinnitus


Side effects may include headache, nausea, GI upset, diarrhea, dizziness, or allergic skin reactions.


May increase bleeding risk


Rats and mice given a specific ginkgo extract for up to 2 years developed tumors; research is needed to determine whether ginkgo affects cancer risk in people.


Milk thistle


Small clinical trials evaluating its efficacy in protecting and promoting the growth of liver cells, fighting oxidation, and inhibiting inflammation have been mixed and two rigorously designed studies found no benefit.


Well tolerated


May cause allergic reaction in people allergic to plants in the daisy family (ragweed, chrysanthemums, marigolds, daisies)


May lower blood glucose levels; should be used with caution by people with diabetes or hypoglycemia


Black cohosh


Results are mixed on whether it effectively relieves menopausal symptoms. A National Center for Complementary and Integrative Health (NCCIH)-funded study found it did not relieve hot flashes and night sweats in perimenopausal or postmenopausal women when used alone or in combination with other herbs.


Experts suggest women should stop using black cohosh and consult a health-care provider if they have a liver disorder or develop symptoms of impaired liver function. Although there are reports of hepatitis and liver failure in women using black cohosh, it is not certain that black cohosh is to blame.


In general, studies evaluating it for menopausal symptoms have not found serious side effects.


It is not known whether it is safe for women who have had hormone-sensitive conditions, such as breast cancer.


Echinacea


Results of studies on whether it can prevent or treat upper respiratory tract infections are mixed.


Mostly well tolerated; GI side effects are most common.


May cause allergic reaction in people allergic to plants in the daisy family (ragweed, chrysanthemums, marigolds, daisies) and those with asthma or a genetic tendency toward allergic reactions


St. John’s wort


Has not been found to be more effective than placebo in treating minor depression or major depression of moderate severity


Interacts with numerous medications, including antidepressants, birth control pills, cyclosporine, digoxin, indinavir, antiseizure medications, and warfarin and related anticoagulants


May cause increased sensitivity to sunlight; may also cause anxiety, dry mouth, dizziness, GI symptoms, fatigue, headache, or sexual dysfunction


Ginseng


Some studies show it may lower blood glucose; other studies suggest possible beneficial effects on immune function.


Research results do not conclusively support health claims associated with ginseng.


Likely safe when taken by mouth for a short period of time


May cause headaches, sleep problems, and GI problems diarrhea


Asian ginseng can cause allergic reactions.


*Lindstrom, A., Ooyen, C., Lynch, M. E., & Blumenthal, M. (2013). Herb supplement sales increase 5.5% in 2012: Herbal supplement sales rise for 9th consecutive year; turmeric sales jump 40% in natural channel. HerbalGram, 99, 60-65. Available at http://cms.herbalgram.org/herbalgram/issue99/hg99-mktrpt.html. Accessed on 3/25/16.

National Center for Complementary and Integrative Health, National Institutes of Health. Herbs at a glance. Available at https://nccih.nih.gov/health/herbsataglance.htm. Accessed on 3/25/16.

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Nov 8, 2018 | Posted by in NURSING | Comments Off on Consumer Issues

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