Nitrous gas inactivates the cobalamin form of vitamin B₁₂ by oxidation. [0]
Vitamin B₁₂ deficiency …… at levels moderately lower than normal, a range of symptoms such as feeling tired, weak, lightheadedness, headaches, dizziness, rapid breathing, rapid heartbeat, cold hands and feet, low-grade fevers, tremor, cold intolerance, easy bruising and bleeding, pale skin, low blood pressure, sore tongue, upset stomach, loss of appetite, weight loss, constipation, diarrhea, severe joint pain, feeling abnormal sensations including numbness or tingling (pins and needles) to the fingers and toes, and tinnitus, may be experienced.
Nitrous gas inactivates the cobalamin form of vitamin B₁₂ by oxidation. [0]
Vitamin B₁₂ deficiency …… at levels moderately lower than normal, a range of symptoms such as feeling tired, weak, lightheadedness, headaches, dizziness, rapid breathing, rapid heartbeat, cold hands and feet, low-grade fevers, tremor, cold intolerance, easy bruising and bleeding, pale skin, low blood pressure, sore tongue, upset stomach, loss of appetite, weight loss, constipation, diarrhea, severe joint pain, feeling abnormal sensations including numbness or tingling (pins and needles) to the fingers and toes, and tinnitus, may be experienced.
[0] https://en.wikipedia.org/wiki/Nitrous_oxide#Safety
[1] https://en.wikipedia.org/wiki/Vitamin_B12_deficiency#Signs,_...
I'm not sure, but you'd have a fantastic time trying