David Charles Keith Roberts

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Female adolescent populations with low calcium intakes and sub-optimal vitamin D status are found in northern China. Whether these individuals are able to adapt by enhancing calcium absorption and reducing calcium excretion for maximizing calcium retention is unknown. This study examined the association between true-fractional-calcium-absorption (TFCA),(More)
BACKGROUND Effective patient nutrition management can both improve people's health and reduce the cost of health care. In Australia, general practitioners (GPs) and dietitians are in a position to provide this service. However, there is a lack of information available on what influences the provision of the service. OBJECTIVE The objective was to(More)
An adequate calcium intake and vitamin-D status is important for bone mineralization in adolescents. In Northern China, calcium intake and plasma vitamin-D level of adolescents is low due to low consumption of dairy foods and inadequate sunshine exposure. True fractional calcium absorption (TFCA) in Chinese adolescents has never been performed. This study(More)
OBJECTIVE To determine whether General Practitioners (GPs) consider or provide nutrition counselling for hypertension, diabetes, lipid disorders, ischaemic heart disease (IHD), overweight or obesity, and whether GPs include assessment of the patient's usual diet, assessment of the patient's readiness to change their diet, provision and discussion of(More)
There is mounting evidence that nutrition plays an important role in the aetiology and management of many diseases affecting Australians. Nutrition counselling provides a strategy for not only reducing patient suffering, but also for reducing the health care costs associated with these illnesses. At the forefront of providing nutrition counselling to(More)
The milk lipids from the dams of two strains of rabbits differing in their cholesterolaemic response, one hyperresponsive and one hyporesponsive to dietary cholesterol, were analyzed. The hyperresponsive dams had significantly higher (P<0.05) cholesterol and phospholipid concentrations than the hyporesponsive dams but similar triglyceride concentrations.(More)
The development of useful and accurate biomarkers for predicting outcomes of food based interventions is becoming more and more important, given the emphasis being placed on ingredients in foods contributing to disease risk reduction and optimal health promotion. With the human genome now laid bare, opportunities abound to barcode individuals with their(More)