Fermentation of the dietary fiber by intestinal microflora results in production of butyrate.

Butyrate possesses anticarcinogenic effect at the colonic level.

Three transporters (MCT1, SMCT1 and BCRP) regulate the intracellular concentration of BT in colonic epithelial cells.

Changes in the expression of these transporters occur in colorectal cancer.

The average of the energy-adjusted diet cost in 6-12 years-old children was 2.17€/1000Kcal (SD+0.49).

Energy-density diets (EDs - Kcal/g) were calculated by three distinct methods: (1) with food and all beverages (ED1), (2) with food and caloric beverages (ED2), and (3) only with food (ED3).

The distributions of the three EDs were statistically different, being higher the ED3 - calculated excluding all beverages (1.15Kcal (SD+0.28) vs. ED2: 1.10Kcal/g; SD+0.24 vs. ED1: 0.99Kcal/g; SD+0.22).

Lower energy-density diets (EDs) were associated with higher diet cost in a sample of school children from a Mediterranean country, regardless the differences between the EDs calculated by three distinct methods.

New reliable and valid instrument to describe health professionals representations about retirement.

A valid instrument that can be used to compare different health professionals.

Job satisfaction is the major factor associated with positions about general policies about retirement.