Relationship of vitamin/mineral supplementation to certain psychologic factors
1991
Read, M.A. | Brunner, R.L. | Miller, G. | St Jeor, S.T. | Scott, B.J. | Carmody, T.P.
The American Dietetic Association maintains that healthy adults can meet nutritional requirements through a balanced diet and, therefore, vitamin/mineral supplements are not generally needed (1). However, 40% to 60% of US adults regularly use such supplements (2-5). Although a number of studies have examined the extent of supplementation, fewer studies have considered possible behavioral correlates of supplement use. Two studies examined whether supplement use is related to 'locus of control' (LOC), which gauges whether an individual attributes causes of events to internal or external factors. Some evidence indicates that individuals who feel responsible for their health (high internal LOC) are more likely to take supplements. The objectives of our study were to expand upon these previous studies by examining the relationship of supplementation to LOC, nutrition attitudes, and emotional well-being.
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