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Magnesium and Calcium Calcium and magnesium compete for absorption in the digestive tract

and Riley, M., 2021

Cognitive Function: B12 is helps support nerve cell health and cognitive function* Cellular Energy Production: Vitamin B12 can also play an important role in contributing to energy production and maintaining a healthy immune system* Immune Support: Vitamin B12 plays a role in immune system health and healthy homocysteine metabolism* Pure Quality: Our supplements are made with premium ingredients sourced from trusted suppliers and guided by nutritional experts, then manufactured and tested to verify potency and purity Pure Difference: What we leave out matters, too

Vitamin C Injections: For immune support and antioxidant protection

Its also possible that a crash follows the initial boost of energy as the body adjusts to the sudden influx of B12