Not noted by Shay, but important to remember is the frequent underestimation of portion size by dieters. Even if nutritional information about calories is available, dieters must still monitor how much they eat, as well as what they eat, with some degree of accuracy. Whether it is tabulated online or on paper, the dieter must take the time to weigh and measure, or at least estimate serving sizes. If he or she does not, portion sizes can easily wreck havoc upon weight loss even with a nutritionally balanced diet.

However, an admittedly small, recent 2010 pilot study, entitled "A community intervention on portion control aimed at weight loss in low-income Mexican-American women" reported by Mary Ann Faucher in the Journal of Midwifery and Women's Health questions the notion of whether detailed education in portion sizes, calories, or overall nutrition is really that valuable for the average dieter. The researchers unintentionally...
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