The Scientific Update column in the latest issue of Vegetarian Journal focused on Long-Term Studies of Vegetarians in the Past 35 Years. Vegetarian Resource Group Nutrition Advisor Reed Mangels, PhD, RD, reports “In the past 35 years, at least six large-scale, long-term studies of vegetarian adults have been conducted. Some studies examine different kinds of vegetarians (lacto-ovo and vegan, for example) and some studies often include non-vegetarians for comparison purposes. Study subjects are asked about their diets and their health and are often given follow-up questionnaires every few years for the duration of the study. These studies can last 20 or more years, so they offer an opportunity to learn a lot about changes in health over time. Subjects make their own choices about diet, exercise, and other factors. Their reports of health issues may be checked using medical records or other records like death registries. These studies provide us with a great deal of information about vegetarian health and mortality and have changed the way that many healthcare professionals think about vegetarian diets.”

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