Samples were analyzed from three metabolism trials to evaluate the effects of dietary phosphorus (P) intake on P excretion in beef steers fed corn-based finishing diets. In Experiment I, ten steers were fed ten diets that involved two processing methods, whole and dry rolled corn and five corn sources, commodity, white, high oil, high protein, and highoil-high-protein corn. In Experiment II, si...

OBJECTIVE To examine (i) the association of percentage of total energy intake from protein (protein intake %) with bone mineral density (BMD, g/cm2) and bone loss at the femoral neck, trochanter and lumbar spine (L2-L4) and (ii) Ca as an effect modifier. SETTING The Framingham Offspring Study. SUBJECTS Men (n 1280) and women (n 1639) completed an FFQ in 1992-1995 or 1995-1998 and underwent ...

Protein intake may have some benefits on reducing blood pressure and cardiovascular events, but their effects are still debated. The objective of this study was to test the prognostic value of protein intake assessed by 24-hour urinary urea in a cohort of hypertensive patients with preserved renal function. A total of 1128 hypertensive patients were followed according to tertile of protein inta...

BACKGROUND AND OBJECTIVES To explore the correlation between dietary sodium intake and cardiovascular and overall mortality, and then determine whether this correlation can be explained by protein and energy intake paralleled with sodium intake in dialysis patients. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS This single-center retrospective cohort study enrolled 305 incident patients who s...

We report feeding studies on adult domestic cats designed to disentangle the complex interactions among dietary protein, fat and carbohydrate in the control of intake. Using geometric techniques that combine mixture triangles and intake plots from the geometric framework, we: (1) demonstrate that cats balance their macronutrient intake, (2) estimate the composition of the target balance and (3)...

Four Hereford X Angus heifers (379 +/- 11 kg) with indwelling hepatic portal vein, iliac artery and mesenteric vein catheters were used in a switchback design to measure net portal absorption of leucine at two levels of energy intake, 130 and 260 kcal metabolizable energy.(kg.75.d)-1. Nine hourly measurements were made through two consecutive 4-h feeding periods on each heifer at each intake le...

Dietary calcium intake and bone density In the January issue of the British Journal of Nutrition Ramsdale et al. reported their study on bone density and calcium intake in fifty-six healthy pre-menopausal women. They showed that there was a correlation between calcium intake and bone density at all three femoral sites and at the spine. In a study of young Chinese women, in whom calcium intake i...

THE RELATIONSHIP BETWEEN THE SOURCE OF PROTEIN INTAKE AND OBESITY RISK IN CHILDREN by Grace Stuhrman Background: Previous research has reported a relationship between high protein intake (>15% of energy) during early childhood and an increased risk of obesity later in life. However, few studies have investigated this relationship during middle childhood to early adolescence or examined the effe...