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Higher absorption rate The intramuscular injection method ensures a 95% absorption rate compared to oral supplements, which have only 50% absorption
However, exceeding the recommended dosage may lead to some side effects: Of course, any vitamins have limitations
Biomaterials 281 , 121339 (2022)
For researchers conducting long-term studies or those with needle aversion, these practical considerations may outweigh the bioavailability difference
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