In 2016, the Norwegian National Nutrition Council concluded that inadequate iodine intake is widespread in sections of the Norwegian population, and that effective measures should be undertaken immediately. This literature review aims to summarise articles published since January 2016 that describe the iodine intake in Norway.
Literature searches were conducted in PubMed and Embase. Altogether thirteen articles that reported intake of iodine from the diet or urinary iodine concentration were included.
The recent studies confirm that inadequate iodine intake is widespread among women of fertile age, pregnant and breastfeeding women, infants who are exclusively breastfed, elderly persons, vegans and immigrants. There are few sources of iodine in the diet, and persons who avoid or have a low intake of milk and white fish are particularly vulnerable.
Inadequate iodine intake is a matter of particular concern in women of fertile age. Healthcare personnel should be aware of this and in certain cases recommend iodine-rich foods or iodine supplements to these and other vulnerable groups.
Good nutrition and nutritional therapy are important for cancer patients before, during and after treatment. The goal for the dietary advices and the nutritional therapy is to maintain or improve the nutritional status of the cancer patients. This seems to have beneficial effects on the oncological therapy. To achieve good results by using nutritional therapy in cancer treatment, a close collaboration between nutritionists, doctors and nurses will be important. The National Nutrition Council initiated in 1996 a working group in order to provide recommendations for diet and nutritional therapy in cancer patients. The group performed a literature review and studied the practice of nutritional therapy in Norwegian hospitals using a mailed questionnaire answered by 33 (72%) hospital departments. This paper gives a summary of this work.