A new food guide for North American vegetarians
ABSTRACT
The
first North American food guide was published by the US Department of
Agriculture (USDA) in 1916. It was not until the 1940s, however, when wartime
shortages, indications of malnutrition among citizens, and the release of the
first recommended dietary allowances focused greater attention on nutrient
requirements, that food guides became a familiar meal-planning tool in the
United States (1). The Canadian government released its first food guide at this
time, in 1942 (2). Until 1992, when the USDA's Food Guide Pyramid (3)and
Canada's Food Guide to Healthy Eating (CFGHE) (2) with its rainbow design were
introduced, the emphasis of food guides was largely placed on meeting nutrient
needs.
The 1992 guides were the first to consider the harmful effects of
overnutrition. They were also the first guides to visually emphasize the
importance of plant foods in the diet. However, they did not include sufficient
guidelines for planning vegetarian diets. USDA publications noted that
vegetarians needed special guidance in planning healthful diets, implying that
the USDA's food guide was not appropriate for vegetarians (4).
Over the
past several decades, a number of meal-planning tools have been developed
specifically for vegetarians (5,6). The majority of these have used the pyramid
format or the rainbow design, and many have been revised versions of the USDA's
Food Guide Pyramid and CFGHE. However, because vegetarian diets differ in many
ways from nonvegetarian diets, the USDA Food Guide Pyramid and CFGHE are not
necessarily the most useful starting point when considering guidelines for
vegetarians. It is particularly difficult to manipulate these tools when
attempting to provide adequate and practical guidelines for vegans (vegans are
vegetarians who exclude all animal products).
In designing a new food
guide for vegetarians, we aimed to achieve the following goals:
--To
establish a guide that would meet the needs of people following different types
of vegetarian diets;
--To help vegetarians choose diets that would meet the
most recent recommendations established by the Institute of Medicine;
--To
include guidelines that focus on specific nutrients of particular interest in
vegetarian diets, as discussed in the American Dietetic Association (ADA) and
Dietitians of Canada's joint position on vegetarian diets in this issue of the
Journal of the American Dietetic Association (7,8);
--To include a wide
variety of foods that are consumed by vegetarians; and
--To increase
awareness about the availability of calcium from nondairy foods.
In
addition, we strived to meet the challenge spelled out in the 1981 issue of the
Journal of Nutrition Education by then US Food and Drug Administration (FDA)
nutritionist Jean Pennington for an "instrument which converts the professional'
s scientific knowledge of food composition and nutrient requirements for health
into a practical plan for food selection by those without training in nutrition"
(9).
Challenges in designing such a guide exist regardless of dietary
pattern. Individual food preferences, habits, and choices within food groups
will all impact diet quality. Although no food guide is completely reliable, a
food guide can maximize the chances that consumers will choose healthful
diets...
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