I didn’t know that before! Good info!

Vitamin B6 contributes to the formation of hemoglobin, which carries oxygen in the blood. If you have a deficiency, you may experience unusual fatigue, weakness, or lack of energy even after a good night’s sleep.
5. Cognitive problems
Vitamin B6 deficiency can lead to confusion, difficulty concentrating, and memory problems. This is because vitamin B6 is essential for brain health and cognitive function.
6. Weakened immune system
A vitamin B6 deficiency can weaken your immune system and make you more susceptible to infections and diseases. In fact, vitamin B6 is essential for the production of lymphocytes, which are essential for the immune response.
7. Tingling and numbness
Low levels of vitamin B6 can cause nerve damage that causes tingling or numbness in the hands and feet. This condition, called peripheral neuropathy, can get worse if left untreated.