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Energy is calories: sugar, carbohydrates." She said the boost from energy drinks often comes from the stimulants they contain

Better mood means fewer stress-eating episodes

Some patients notice improved energy or mental clarity within 2448 hours, whilst others experience no immediate change, particularly if deficiency is severe

Keep in mind that many health insurance plans do not cover the cost of vitamin B12 injections when used for lifestyle or wellness purposes, so it's important you speak with your healthcare provider and insurance company

"What you want to get in are some carbohydrates and some protein within an hour to an hour and a half," she said

Vitamin B12 helps form red blood cells and improves the nervous system and metabolism