The ideal guide for the purchase of vitamins and nutritional supplements and save

Is it better to buy the natural vitamins or manufactured?
The fact that perhaps there is little difference between the natural vitamins found in foods and the vitamins manufactured in the laboratory, where the composition of the chemical for them and one they are composed of the same molecules, with the exception of fat soluble vitamins as vitamin E and natural, for example, more absorbed in the intestines of processed species, the biological impact has been greater. And must pay attention to the normal word on vitamins tray does not necessarily mean that all the vitamins in the package have been drawn from food sources natural, in fact, there are a lot of vitamins called (naturally) contain a large amount of vitamins manufactured and the primary reason for this is the reason purely economic. For example, when the extraction of vitamin C from fruits floral natural to be very expensive, word naturally refills vitamins it means in fact that they do not contain other non-natural ingredients. The difference is that if the components that was not written by a natural word can contain droplets of coal or industrial colors or preservatives, sugar, starch and some other additions sometimes.
So prefer eating natural vitamins to avoid the introduction of synthetic materials harmful to our bodies we do not need, and for science, the minerals feed supplement sometimes be surrounded by a holder to increase the absorption, if the difference in price is significant between different types of metals, prefer buying composite metals because they are more effective absorption , preferably always taking supplements with meals because they automatically combine with elements in the stomach during digestion.
How to Save Food Ingredients:
We should know that food ingredients do not last effectiveness to no end, where the decreasing effectiveness over time, Vitamins, for example, retains its strength for a period of two or three at the most, provided stored in a closed container, while for metals it does not spoil in itself, but other materials used in its composition and the elements with such packaging protein that spoil in fact, and so always be careful to make sure of the validity date flogger ingredients on the packaging, and generally likes keeping dietary supplements in a dry place and cool and dark, and unlike common it does not it is advised to save the bottles of vitamins in the refrigerator because they are often high humidity and excess cold, which affects the effectiveness of some vitamins and is considered an appropriate degree to save the vitamins normal room temperature.