China, a significant regional actor, is focusing primarily on large-scale production of reduced glutathione, supported by robust pharmaceutical and nutraceutical industries
Unlike oral supplements, B12 injections deliver the vitamin directly into the bloodstream , bypassing digestive absorption issues that can limit effectiveness
253-258 A meta-analysis conducted in 2023 examined 19 randomized controlled trials including 999 participants and found that various garlic preparations significantly reduced triglycerides, total cholesterol, and LDL cholesterol compared with placebo
IV glutathione demonstrates better tissue penetration but requires clinical administration
To maintain optimal B12 levels, regular injections may be necessary, typically every few weeks or months