Gallon challenge

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Onlookers at the 6th Annual Gallon Challenge watch as Joseph Ubriaco takes his last sips to complete the challenge for the win on August 12, 2006
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Onlookers at the 6th Annual Gallon Challenge watch as Joseph Ubriaco takes his last sips to complete the challenge for the win on August 12, 2006


The gallon challenge is a physical challenge in which a person attempts to drink a gallon of milk within one hour without vomiting. There are many variations to the challenge, so formal rules have not been set. However, many groups including the Gallon Challenge Foundation play with the following set of rules:

  • The entire gallon must be consumed within the course of one hour.
  • If one vomits, one is disqualified.
  • Whole milk is typically used, however chocolate milk, although harder to consume, is eligible, provided that chocolate syrup (or equivalent) is added to the gallon of whole milk.

The difficulty of the challenge would increase dramatically if a participant is also required to continue to keep the milk down for at least one hour after consuming it.

[edit] Difficulty

Despite the seemingly simple nature of the challenge, it is widely regarded to be impossible to complete a gallon challenge. There are a number of proposed theories for this, including:

  • The high volume of lactose in the milk causing a gag reflex
  • The high volume of milk fat which cannot be digested fast enough

But despite these theories, it is possible although extremely uncommon for a person to be able to complete a gallon challenge. On August 12, 2006, at the 6th Annual Gallon Challenge in front of a crowd of about 40 people including local press, Joseph Ubriaco and Raymond Donnelly completed the gallon challenge successfully. Most participants are unable to even ingest the entire gallon of milk, however.

[edit] External links