I'm wondering what affects bioavailability the most, and possibly some products that are potent in that area...
From one site I heard the following
two fillings that seems to be interfering with absorption is the magnesium stearate, and also tricalcium phosphate. Therefore, it is best to avoid tablet form of vitamin altogether. The reason I know this fact is I used to moonlight making these vitamin tablets and just knew that companies don't care whether it is bioavailability, all the want is to get those numbers (mg. of minerals, or vitamins) show on the packaging since this is how consumers judge the quality of the vitamins.
Tricalcium phosphate often blocks absorption. Magnesium stearate will slow solubility and also block vitamin absorption.
Powder form is generally the best, followed by soft capsules, and tablets that dissolve in less than 15 minutes in the glass. Soft capsules usually will be better than tablets because to get tablets in their "form" the machine must be pressed heavily, making them quite invulnerable often even to moisture.
absolutely avoid all ingredients in oxide form. Oxide forms of mineral include magnesium oxide, zinc oxide, etc. They don't dissolve in water and will generally stay in their original form. It is poorly absorbed. The second worse form is carbonate form of mineral, such as magnesium carbonate, zinc carbonate, etc. These are also poorly soluble. Aspartate are soluble, but they are toxic of the likes similar in some ways to aspartame, such as magnesium aspartate. Generally the best form are also the hardest ones you can find, minerals in the form of citrate, bicarbonates, and chloride.
Therefore, it is best to generally avoid magnesium stearate that is used in fillings. If you INSIST in using it, then may I suggest you get the tablet and pound them in mortal and pestle so they become powder. Take this ALONG with the food you eat or mix it with the food.
Can anyone vouch for these claims, and does anyone have any multivitamins that are bioavailability, according to these standards and any others unlisted?
The multivitamin I was previously taking had Magnesium Oxide, Magnesium Stearate, Zinc Oxide, and was a tablet form with a slick outer coating, and didn't dissolve in water quickly at all. No wonder it didn't work to well. Need help finding one that does..
