Background: Previously, we showed that vegetable oil is necessary for carotenoid absorption from salad vegetables. Research is needed to better define the dose effect and its interindividual variation for carotenoids and fat-soluble vitamins.Objective: The objective was to model the dose-response relation between the amount of soybean oil in salad dressing and the absorption of 1) carotenoids, ...

Vitamins Vitamins A, D and E are important for finish ing lambs and usually need to be supplemented in finishing ra tions (Table 3). Including these in the ration is fairly easy; however, some studies indi cate that injecting these into lambs upon receiv ing is more advantageous than day-to-day vitamin supplementation. Water soluble vita mins (B vita mins) usually are not needed unless lambs ar...

A reversed-phase high-performance liquid chromatographic method is described for the simultaneous determination of vitamins A, D2, D3, E and K1, retinyl acetate, retinyl palmitate, tocopherol acetate, ergosterol and 7-dehydrocholesterol in milk and butter. Narrow-bore columns are recommended because this alternative provides a good separation and efficiency, plus greater economy and sensitivity...

Dietary fats, or lipids, are a macronutrient class that includes fatty acids, triglycerides, and cholesterol. Fats supply fuel energy (9 kcal/g) and the essential fatty acids, linoleic and alphalinolenic acids. Fats, therefore, are a key factor in the maintenance of caloric balance and body weight. Specific fatty acids also serve as precursors for numerous biological pathways that influence inf...

The aim of the present study was to determine the effects of dietary supplements of vitamins on vitamin status, libido, and semen characteristics in young boars under normal and intensive semen collection. Sixty Landrace, Yorkshire, and Duroc boars were allocated randomly from 6 to 10 mo of age to one of the following diets: 1) basal diet (industry level) for minerals and vitamins (Control, n =...

increased intestinal loss, malabsorption, hypermeta-bolic state, drug interactions, and long-term total parenteral nutrition (TPN). 4 Numerous vitamin and mineral deficiencies have been reported in IBD patients, with varying degrees of clinical significance. 2 Vitamins and minerals are naturally occurring compounds that are required for diverse bodily functions, and must be obtained from the di...

Vitamins may be required in minute amounts by the body, but they are undeniably necessary for normal metabolic and physiological processes. The discovery of vitamins and an improved understanding of their functions are among the most important achievements of this century. Most vitamin deficiency diseases are rarely seen today except in developing countries. What exactly are vitamins? The natur...