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• MNT provided by a registered dietitian to overweight and obese adults for less than six months yields significant weight losses of approximately one to two pounds per week. MNT provided from six to twelve months yields significant mean weight losses of up to 10% of body weight with maintenance of this weight loss beyond one year.

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• Studies evaluating the effectiveness of diabetes MNT provided for three to six months by a registered dietitian reported reductions in A1C ranging from 0.25% to 2.9%, depending on the type and duration of diabetes. Multiple studies of diabetes MNT showed sustained improvements in A1C at twelve months and longer.

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• MNT provided by a registered dietitian lowers blood pressure in adults with hypertension. Studies show that MNT provided for less than six months leads to significant reductions (approximately 5 mmHg) in both systolic and diastolic blood pressure. MNT provided from six to twelve months reported similar significant reductions in blood pressure with sustained reductions in blood pressure beyond one year.

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- Academy of nutrition and Dietetics, Registered Dietitians, Your Nutrition Experts, 2012 | View PDF