The Zone diet is a fad diet emphasizing low-carbohydrate consumption.[1][2] It was created by Barry Sears, a biochemist.[3][4][5]
The ideas behind the diet are not supported by scientific evidence.
The Zone Diet is not a weight-loss program per se, but a clinically validated dietary system to reduce cellular inflammation throughout the body and in the process control hunger. Barry Sears (2) Fats (2) Gut Health (2) Obesity (2) Restaurants (2) Seafood (2) Shakes (2) Sleep (2) Summer (2) Supplements (2) Weight Loss Plateaus (2. Barry Sears The Zone Diet Publisher: Thorsons (January 4, 1999). The zone diet meal planner, the zone diet meal plan, the zone diet recipes, the zone diet. The Zone Diet [Barry Sears] on Amazon.com. *FREE* shipping on qualifying offers. The Complete Plan to Revolutionize Your Diet and Your Life THE ZONE is the revolutionary diet plan based on Nobel-prize winning research that has been adopted by celebrities including Madonna.
- The Zone diet was developed by Barry Sears. Sears has a Ph. In biochemistry, but no special training in nutrition. He began working on this diet in the 1970s.
- Diet is critical to optimizing human function, and our clinical experience leads us to believe that Barry Sears’ Zone Diet closely models optimal nutrition. CrossFit’s best performers are Zone eaters. When our second-tier athletes commit to strict adherence to the Zone parameters, they generally become top-tier performers quickly.
- Barry Sears explains the Zone diet and how it reduces cellular inflammation. Cellular inflammation is the underlying cause of chronic disease, and our diet can either reduce it or increase it.
Approach[edit]
The diet is meant to promote weight loss via reduction in calories consumed and avoid spikes in insulin release, thus supporting the maintenance of insulin sensitivity.[4][6]
The Zone diet proposes that a relatively narrow distribution in the ratio of proteins to carbohydrates, centered at 0.75, is essential to 'balance the insulin to glucagon ratio, which purportedly affects eicosanoid metabolism and ultimately produces a cascade of biological events leading to a reduction in chronic disease risk, enhanced immunity, maximal physical and mental performance, increased longevity and permanent weight loss.'[1]
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The diet advocates eating five times a day, with 3 meals and 2 snacks, and includes eating proteins, carbohydrates - those with a lower glycemic index are considered more favorable, and fats (monounsaturated fats are considered healthier) in a caloric ratio of 30%-40%-30%. The hand is used as the mnemonic tool; five fingers for five times a day, with no more than five hours between meals. The size and thickness of the palm are used to measure protein while two big fists measure favorable carbohydrates and one fist unfavorable carbohydrates. There is a more complex scheme of 'Zone blocks' and 'mini-blocks' that followers of the diet can use to determine the ratios of macronutrients consumed. Daily exercise is encouraged.[5]
The diet falls about midway in the continuum between the USDA-recommended food pyramid which advocates eating grains, vegetables, and fruit and reducing fat, and the high-fat Atkins Diet.[6]
Effectiveness[edit]
Like other low-carb diets, the ideas underlying the Zone diet are unproven.[4][1]
As of 2013, there were 'no cross-sectional or longitudinal studies examining the potential health merit of adopting a Zone Diet per se, [and] closely related peer-reviewed findings from scientific research cast strong doubt over the purported benefits of this diet. When properly evaluated, the ideas and arguments of popular low carbohydrate diet books like the Zone rely on poorly controlled, non-peer-reviewed studies, anecdotes and non-science rhetoric.'[1]
See also[edit]
References[edit]
- ^ abcdCheuvront SN The Zone Diet phenomenon: a closer look at the science behind the claims. J Am Coll Nutr. 2003 Feb;22(1):9-17. PMID12569110
- ^DeBruyne L, Pinna K, Whitney E (2011). 'Chapter 7: Nutrition in practice — Fad Diets'. Nutrition and Diet Therapy. Nutrition and Diet Therapy. Cengage Learning. p. 209. ISBN1-133-71550-8.
'a fad diet by any other name would still be a fad diet.' And the names are legion: the Atkins Diet, the Cheater's Diet, the South Beach Diet, the Zone Diet. Year after year, 'new and improved' diets appear ..
CS1 maint: Multiple names: authors list (link) - ^Bijlefeld M, Zoumbaris SK (2014). 'Sears, Barry'. Encyclopedia of Diet Fads: Understanding Science and Society (2nd ed.). ABC-CLIO. pp. 190–191. ISBN978-1-61069-760-6.
- ^ abcBaron M. Fighting obesity Part 1: Review of popular low-carb diets. Health Care Food Nutr Focus. 2004 Oct;21(10):1, 3-6, 11. Review. PMID15493377
- ^ abBaron M. The Zone Diet. Health Care Food Nutr Focus. 2004 Oct;21(10):8-9, 11. PMID15493380
- ^ abLara-Castro C, Garvey WT. Diet, insulin resistance, and obesity: zoning in on data for Atkins dieters living in South Beach. J Clin Endocrinol Metab. 2004 Sep;89(9):4197-205. PMID15356006
External links[edit]
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Zone_diet&oldid=891908346'
Barry Sears Diet Plan
Biochemist Barry Sears created the Zone diet based on his theory that eating a certain ratio of macronutrients at each meal limits inflammation, controls blood sugar, and results in a healthier weight. This diet may also help you get enough of vitamins A, C, E and K without increasing your risk for any micronutrient deficiencies, according to a study published in 'The American Journal of Clinical Nutrition' in August 2010. You'll have to do a lot of math to follow this diet, however, as it requires that you get a specific ratio of macronutrients at each meal.