Lab testing is the foundation of personalized health at Hundred. Lab tests are measurable indicators in your blood, urine, and other systems that reveal how your body is functioning—across hormones, metabolism, inflammation, heart health, nutrient levels, and more.

But we believe real health clarity doesn’t come from labs alone.

At Hundred, we combine advanced lab testing with your lifestyle, goals, medical history, and wearable data to give you a complete picture of your health. This helps you understand what your results mean, why they matter, and what to do about them—so you’re never stuck with a PDF full of numbers you don’t understand.

The labs we test are organized by system—making it easy to see which areas of your health need support, attention, or optimization. From hormone balance and metabolic health to cardiovascular risk and nutrient deficiencies, the list below shows everything we measure, and why it’s essential.

Whether you’re looking to feel better, age smarter, or get answers about what’s going on in your body, these lab tests form the foundation of your personalized 100-Day Protocol.