I tried a genetics test that told me how I should eat and work out based on my DNA — and it was frighteningly accurate

I've shipped my spit to a lot of companies, like family-heritage site AncestryDNA and personal-genetics company 23andMe.

All that information I got from those tests was just the beginning. More recently, I wanted to take my genes a step further.

Pathway Genomics, which has been around since 2008, offers tests that cover everything from liquid biopsies (tests that look for circulating tumor cells in the blood) to tests that tell you how your body will interact with a certain medication.

One of its most popular tests, called Fit, takes a look at a subset of genes to give you a snapshot of how your body might respond to food and exercise based on your genetic makeup.

At $599, it's not the cheapest test out there, but I felt like this test was sometimes reading my mind:

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NEXT: I shipped my spit to AncestryDNA to see how much I could learn from my genes — and found out my family history is more complex than I thought

Soon after I ordered the test online, Pathway's shiny silver box arrived at the office.

Inside, I found a standard spit-collection kit, a bag to put it in, and a set of instructions and paperwork.

Like any other spit-based DNA test, Pathway's had me muster up a lot of spit. (My new trick: I picture eating sour foods, which make me salivate like crazy).