[Erosive drinks on the icelandic market.].

Objective: Dental erosion seems to be a growing health problem in Iceland. The international literature indicates that beverages such as carbonated drinks and fruit juices have considerable potential to causes tooth erosion. The aim of this study was to assess the erosive potential of drinks on the Icelandic market.

[Validity of a food frequency questionnaire to access dietary intake of adults.].

Objective: The aim was to assess the validity of a food frequency questionnaire (FFQ).

Material And Methods: Participants (n=84, aged 36-/+6) filled in a food frequency questionnaire, and the intake of nutrients and food items was estimated. Vitamin-C and beta-carotene blood concentration was measured as well as sodium (Na), potassium (K) and nitrogen (N) excretion in the urine.

[The use weight loss menues for overweight Icelanders aged 20-40 years].

Objective: To carry out an intervention study on weight loss menues for young overweight Icelanders giving 30% less energy than calculated energy need for unchanged body weight, with the percentage of energy giving nutrients in congruity with official recommendations.

Material And Methods: Subjects were women (n=71) and men (n=43) aged 20-40 y, having a body mass index (BMI) in the range 28-32 kg/m2. The daily energy for weight balance at baseline was estimated for each individual and a menu prepared to give 30% less energy.