A new study found that women following the paleo diet, the “Caveman” diet which excludes both dairy products and iodized table salt, may increase their risk for an Iodine deficiency.
70 healthy postmenopausal women who were obese or overweight participated in this prospective randomized weight loss trial. The study lasted 2 years. The participants were randomly assigned to follow the paleo diet or a diet based on the Nordic Nutrition Recommendations (NNR). At the beginning of the study both diet groups had matching Iodine levels which were measured by 24-h urinary iodine excretion (24-UIE) and 24-h urinary iodine concentration (24-UIC). The paleo group experienced decreases in Iodine measures during the course of the study but no decreases were observed in the NNR group.
The paleo diet has experienced an increase in popularity among American fitness enthusiasts and the number of foods targeting paleo dieters is growing. The diet encourages followers to eat lean meats, vegetables and most fruit but avoid corn, dairy, grains, potatoes and legumes. This new study is the first to evaluate the effects of this diet on Iodine levels in the body.
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