When undertaking a ketogenic diet, consumers need to monitor if they are or are not in ketosis. There are essentially two methods the average person can use at home to make the determination:
1) Detecting ketones in urine:
The easiest way to check for ketosis is by using ketone urine testing strips, usually and generically referred to by the brand name Ketostix®. These convenient testing strips are relatively inexpensive and are a great method for quickly checking ketone levels in the urine.
2) Detecting ketone levels in blood:
This method is a little more complex and requires a person to prick his finger and draw a small amount of blood. A special blood ketone meter is then used to measure the amount of ketones in the blood. While using the special blood ketone meter may be a bit more accurate than using the urine test strips, the downside is many people dislike having to prick themselves with a needle and use their blood for a measurement. Additionally, the special machines and their required test strips are considerably expensive, usually several dollars per test. It is standard practice to test a couple times a day to ensure ketosis is ongoing, so this can get expensive quickly.