• Daniele Lazzarotto Harter, Fernanda Michielin Busnello, Raquel Papandreus Dibi, Airton Tetelbom Stein, Sérgio Kakuta Kato, and Carla Maria De Martini Vanin.
• Universidade Federal de Ciências da Saúde de Porto Alegre, Department of Nutrition, Porto AlegreRio Grande do SulBrazil.
• Sao Paulo Med J. 2013 Jan 1; 131 (5): 315322315-22.

Context And ObjectiveOsteoporosis is a skeletal abnormality characterized by reduction and alteration of bone microarchitecture that results in increased fragility and greater predisposition to fractures. Age and low bone mass are the main non-modifiable risk factors for osteoporotic fractures. The modifiable factors include sedentary lifestyle, inadequate calcium intake, excessive alcohol and/or caffeine consumption, smoking and low body weight. The aim here was to evaluate the association between low bone mass and calcium and caffeine intake among perimenopausal women in Southern Brazil.Design And SettingCross-sectional study conducted in Porto Alegre and Canoas, Rio Grande do Sul, Brazil.MethodsWomen (n = 155) of mean age 53.6 ± 9.5 years were evaluated through a cross-sectional study in Southern Brazil. Food frequency questionnaires, bone mass evaluation using calcaneal ultrasound and anthropometric assessment were used.ResultsThe prevalence of overweight was 67.7%. In the bone mass screening, 30.3% had low bone mass and 4.5% had osteoporosis. The median calcium intake was 574.94 mg/day and the caffeine intake was 108.11 mg/day. No association was found between bone mass and anthropometric parameters, calcium intake or caffeine intake. It was found that 38.4% of the women had low bone mass.ConclusionsNo association was found between calcium and caffeine intake and bone mass. High prevalence of low bone mass was observed.

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