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They should not be compared

Gastrointestinal Therapeutics Given BPC-157's origin from gastric juice and extensive preclinical evidence for gastrointestinal protection, digestive system applications warrant clinical investigation

[2] High-dose intramuscular administration creates a tissue depot that releases vitamin D slowly over weeks, potentially enabling a single injection to lift serum 25-hydroxyvitamin D levels into the sufficient range in severe deficiency and to potentially support bone mineralisation, neuromuscular function, and secondary hyperparathyroidism reversal while bypassing the gastrointestinal tract

Acknowledgments The writing of the manuscript was assisted by ChatGPT (OpenAI, California, US) and Grammarly (Superhuman Platform Inc., California, US) for language support