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Nutrient composition

Optimal Serum Selenium Concentrations Are Associated with Lower Depressive Symptoms and Negative Mood among Young Adults

TS Conner, AC Richardson, JC Miller. J Nutr. 2014 Nov 5. pii: jn.114.198010. [Epub ahead of print]



There is evidence that low, and possibly high, selenium status is associated with depressed mood. More evidence is needed to determine whether this pattern occurs in young adults with a wide range of serum concentrations of selenium.


The aim of this study was to determine if serum selenium concentration is associated with depressive symptoms and daily mood states in young adults.

Maternal Intake Of Dietary Methyl Donors In Pregnancy And Childhood Asthma At 7 Years


Prenatal folate and other methyl donor intake are currently being evaluated as potential contributors to the development of childhood asthma. Existing studies have been variable, showing both positive and negative associations of dietary methyl donor intake with childhood asthma. This study seeks to look more comprehensively at the dietary intake of methyl donors during pregnancy and its association with the development of childhood asthma.

Age-related and disease-related muscle loss: the effect of diabetes, obesity, and other diseases

The term sarcopenia refers to the loss of muscle mass that occurs with ageing. On the basis of study results showing that muscle mass is only moderately related to functional outcomes, international working groups have proposed that loss of muscle strength or physical function should also be included in the definition. Irrespective of how sarcopenia is defined, both low muscle mass and poor muscle strength are clearly highly prevalent and important risk factors for disability and potentially mortality in individuals as they age.

Low vitamin D status is an independent predictor of increased frailty and all-cause mortality in older men: the Health in Men study

This prospective cohort study in 4203 older men aged 70-88 years in Perth, Western Australia showed an inverse association between plasma 25(OH)D levels and frailty, as well as all-cause mortality, over a period up to 9 years.

Context and objective
Hypovitaminosis D and frailty are common in the older population. We aimed to determine whether 25-hydroxyvitamin D [25(OH)D] concentrations are associated with frailty and mortality.

Diet-induced weight loss: the effect of dietary protein on bone

High-protein (>30% of energy from protein or >1.2 g/kg/day) and moderately high-protein (22% to 29% of energy from protein or 1.0 to 1.2 g/kg/day) diets are popular for weight loss, but the effect of dietary protein on bone during weight loss is not well understood. Protein may help preserve bone mass during weight loss by stimulating insulin-like growth factor 1, a potent bone anabolism stimulator, and increasing intestinal calcium absorption. Protein-induced acidity is considered to have minimal effect on bone resorption in adults with normal kidney function.