Vitamin B12
The energy vitamin vegans desperately need. Fuels nerve function and red blood cell production.
Verdict
10/10 Proven
Evidence
Grade A / 400+ Studies
The No-BS Summary
8 things. 60 seconds. Everything you need.
WHAT IT DOES
The energy grid's foreman.
DOES IT WORK?
10/10 Proven. This one actually works. Critical for life. Deficiency causes permanent damage.
HOW MUCH TO TAKE
2.4mcg - 1000mcg
COST
Budget-friendly. $20-35/month for quality brands.
FIRST 24 HOURS
Don't expect miracles on day one. It's building in your system.
AFTER A FEW WEEKS
Most people notice something by week 2-3.
SAFETY
Safe for most people. No red flags at normal doses.
HOW IT FEELS
Wakefulness and mental stamina.
QUICK ANSWERS
+ 4 more questions
DOSE-RESPONSE CURVE
How effective is creatine monohydrate at different doses? Here's what the research shows.