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Vitamin B complex plays a crucial role in energy production, red blood cell formation, and nervous system function

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Oral delivery poses a challenge due to peptide degradation, prompting investigations into salt-form optimization

Similarly, Quan et al

Over the years, methods have been refined into the most commonly used protocol today, which uses an acid/ethanol precipitation (to disrupt the IGF-1/IGFBP complex) followed by the addition of insulin-like growth factor-2 (IGF-2) to prevent the reformation of the IGF/IGFBP complex

Phytochemistry 93:4962