Vitamin B12 25000 mcg - 41667%. Yes, you read it right! ZipFizz has 25,000 micrograms of Vitamin B12.

Here's some information about Vitamin B12 and the recommended doses.
Vitamin B12 primary functions are in the formation of red blood cells. It is also important for maintaining a healthy nervous system. If you don't have enough you can feel excessive tiredness, breathlessness and have poor resistance to infections.
Vitamin B12 can be stored in small amounts by the body. Total body store is about 2-5mg in adults and about 80% of it is stored in the liver.
FDA recommends a daily dosage of Vitamin B12 for 15+ yrs to be 1.5 micrograms a day and ZipFizz has 25,000 micrograms in one dose.
B12 has very low toxicity and high intakes are not thought to be dangerous.