Advantages of Vitamin Injections over Oral Supplements
Years ago, a reputable consumer watchdog company did an intensive study on the purity and effectiveness of 1,600 oral supplements. Of the products that were tested, one-fourth were discovered to be either sub potent or contaminated or both. Because the FDA is has no responsibility over oral vitamin supplements, manufacturers are left on their own as to the quality of such products. On the other hand, vitamin Injections only contain ingredients approved by the the United States Pharmacopeia-National Formulary (USP-NF).
Here are the specific advantages that come with vitamin injections:
Greater Absorption Efficiency and Bioavailability
Oral supplements first need to be digested and absorbed by the body’s tissues before their active ingredients start taking effect. Moreover, when the quality of the nutrients is low and the supplements are made with cheap fillers, the bio-availability (the portion of the supplement that is actually beneficial to the body) of the supplements is decreased, intestinal absorption is dramatically reduced, and incalculable levels of the active ingredients manage to reach the bloodstream. Vitamin Injections, however, deliver the nutrients straight into the body’s tissues, promising total – as in 100% – absorption and on-the-spot utilization of the active ingredients.
Inapplicable First-Pass Metabolism
After they are absorbed into the digestive system, oral supplements are metabolized by gastrointestinal tissues and the liver before being released into the blood so they could be distributed around the body. This is called first-pass metabolism, and it greatly lessens the amount of active ingredients that the body can actually use. In contrast, the first-pass effect does not apply to vitamin injections because the active ingredients are delivered straight into the bloodstream.
Fast Onset of Action
As mentioned in the previous paragraph, oral supplements have to go through an entire process before getting into the bloodstream, and this can take hours before the active ingredients start to act on the target tissues. Compared to oral supplements, injectables are able to correct dietary deficiencies so much faster.
Lower Dosing Frequency
With their low bioavailability and the thorough metabolic process they have to undergo, oral supplements are usually prescribed in more frequent doses to make them effective. Since they do not have to go through the same process, vitamin injections are absorbed completely, which means the concentration of nutrients reaching the tissues is greater. Also, intramuscular injections have a depot effect, where the active ingredients are gradually and consistently released over time. This is why vitamin injections need less frequent dosing compared to oral supplements.
Compared to oral dietary supplements, vitamin injections are better because of their superior quality ingredients, which do not include fillers or contaminants, and higher potency. Right after administration, the active ingredients are totally absorbed by the bloodstream for systemic circulation, correcting nutritional deficiencies instantly. And because of the depot effect and the higher amount of nutrients that end up utilized by the target tissues, less frequent dosing is necessary.