Participants were divided into groups based on calcium intake â less than 600 mg a day, between 600 and 999 mg daily, from 1,000 through 1,399 mg a day, and 1,400 or more mg daily (about five 8-ounce glasses of cow's milk).
1 Each ticket costs $1. 2  Mega Millions draws are held Tuesday and Friday at 11:00 p.m. 3  All prizes, except the jackpot, are fixed dollar amounts. 4  The jackpot total is dependent on the amount of money in the draw's prize pool.
The Mega Millions jackpot starts at $15 million, but most often grows from that into a very large jackpot since the game is played in so many states and is so difficult to win. Jackpots increase by a minimum of $5 million each time there is no winner.