How long does it take to get into Ketosis?

According to the Atkins Nutritional web site, "The body can only store a two-day supply of glucose in the form of glycogen, so after two days of consuming no more than 20 grams of carbohydrates, most people go into lipolysis/ketosis."

The link to that information is below.

Edit:
Atkins FAQ section no longer exists, it has been omitted from the new Atkins website. But i found some ketosis-related resources here:
http://www.aboutatkinsdiet.com/atkin...nd_ketosis.htm
and here:
http://www.querycat.com/faq/672dc89b...0fc25d4fa4cd81
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