“B1 to harvest energy from glucose, the end result of digesting carbohydrates. Brain cells especially rely on glucose for energy, since other sugars cannot cross the blood-brain barrier. The brain also needs thiamine to make myelin sheaths and to build certain neurotransmitters.”

“B1 to harvest energy from glucose, the end result of digesting carbohydrates. Brain cells especially rely on glucose for energy, since other sugars cannot cross the blood-brain barrier. The brain also needs thiamine to make myelin sheaths and to build certain neurotransmitters.”

— Sam Kean