Let's get started on your insulin resistance (IR) testing

Did you know over half of Americans with prediabetes are not aware of their condition? Our home insulin resistance test will measure your glucose tolerance to determine if you have the early stages or undiagnosed diabetes, so you can make necessary lifestyle changes and take control of your health.

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3 steps to complete your IR sample

This test requires 3 blood draws. The process is as follows:


In a fasted state in the morning (which means fasting 12 hours in advance of the first draw), you'll collect your first sample. Right after, you'll need to drink something with 75g of sugar. You will then fast again for 1 hour until your next test.


After 1 hour of ingesting the sugary drink, you will collect your second sample. You'll then need to fast for 1 more hour until your last test.


After 2 hours of drinking 75g of sugar, you'll collect your last sample.

Tips for collecting your IR sample

We've made it as easy as possible to self-collect your sample at home — but there are some important tips to remember in order to get the best results.

You must fast for at least 8 hours before your first blood draw.

We recommend you take the test first thing in the morning.

During all fasting periods, water is allowed — but no other liquids or food are permitted.

Once you start, minimize movement, especially between the 2nd and 3rd blood sample collection. Even light exercise such as walking can cause your body to regulate your blood glucose and skew your results. So consider this your doctor's order to take it easy for a few hours.

How to eat and what to have ready before IR testing

If you follow a low-carb or keto diet:

You need to consume at least 150 grams of carbs per day for 2 days prior to the test. The goal of our test is to show the performance of your body at “typical” or “normal” conditions. If you’re eating a keto diet, you’re not regularly stressing your pancreas with insulin release. And if you don’t “load” with these 2 days of carbs, you can have an unnaturally strong 1st phase of insulin release.

This test requires a high sugar drink

You will also need to have a drink with 75g of sugar available to take right after you collect your first blood sample. Glucola is what’s typically used for these tests, which you may be able to buy online or at your local pharmacy. If you can't find Glucola, you can substitute with basic alternatives to reach 75g of sugar, such as:

A large coca-cola from McDonald’s

Orange juice or apple juice in calculated servings. ie. if 10 fl. oz. of juice contains 38g of sugar, so you’ll need 2 servings for a total of 20 fl. oz

Applesauce works, too! You will likely need to have about 3 servings. Check the label to be sure.

Insulin Resistance Test FAQ's

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Why do we recommend eating 150 grams of carbs per day for the 2 days before an OGTT?

The goal is to show the performance of the body at “typical” or “normal” conditions. If you’re eating a keto diet, you don’t stress your pancreas with insulin release. So, the pancreas is able to store insulin. Keto dieters that don’t “load” with these 2 days of carbs can have an unnaturally strong 1st phase insulin release.

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What are the optimal test result values for glucose tolerance?

1st collection (Fasting) – 90 or less,  2nd collection (1 hour after drinking 75g of sugar) - 120 or less, 3rd collection (2 hours after drinking 75g of sugar) - 100 or less.

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If my result numbers are higher than optimal, does it mean I have diabetes?

There are several criteria for a diagnosis of diabetes. Two of the most common examples include a fasting glucose over 125 and a peak glucose over 200. Many people have numbers like this – and higher. And most of them are able to keep their blood sugars down to healthy levels with lifestyle management.

if your numbers are higher than optimal (90, 120 and 100), but you don’t match the criteria for diabetes, this is called prediabetes. Don’t let the term “prediabetes” fool you. It’s not just a touch of sugar. It’s the most common cause for developing arterial plaque, cardiovascular inflammation, and therefore heart attack, stroke and other major chronic disease outcomes.

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Can I drink water prior to and during the test?

Yes! And being well-hydrated helps with getting a good sample collection.

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Can I drink coffee prior to the test?

Yes, provided black with no additives or sugar whatsoever.

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Do I still need to take the test if I’ve already been diagnosed with Diabetes?

Yes, even people with significant diabetes should measure and track their condition.  Results provide your doctor with the information to inform you of progress and or regression.  There are multiple levels of diabetes that need to be considered and treated.

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How long does this test take to complete?

It take a total of 2 hours (first test, 1 hour break, second test, 1 hour break, 3rd test)

Questions? We're here to help.

We know it can feel a little tricky when you're self-testing for the first time — so don't hesitate to contact us if you need help with any step of the process.

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