June 2, 2026

Longevity biomarkers: the 10 blood tests high-performers are ordering in 2026 So, you’re interested in what high-performers are checking in their blood by 2026? It’s all about looking ahead and understanding your body’s signals. Longevity biomarkers are becoming a big deal, not just for athletes or CEOs, but for anyone wanting to stay healthy longer. Think of it as getting a detailed report card for your internal systems. These aren’t just random numbers; they tell a story about your metabolic health, inflammation levels, and even your cardiovascular risks. Knowing these markers helps you make smarter choices now to feel better down the road. It’s about being proactive, not just reactive, when it comes to your health. Key Takeaways Longevity biomarkers are blood markers that show your body’s internal aging process, helping you manage health proactively. Tracking these markers can reveal early signs of issues like metabolic problems or heart risks before symptoms appear. Focusing on trends and consistency across multiple biomarkers is more useful than chasing single perfect numbers. Many key longevity biomarkers relate to metabolic health, cardiovascular function, and inflammation. Understanding your longevity biomarkers allows for data-driven lifestyle choices aimed at improving healthspan. 1. Hba1C Alright, let’s talk about HbA1c. You might have heard of it, maybe seen it on a lab report. Basically, it’s a way to check your average blood sugar levels over the last two to three months. When your blood sugar is high, glucose sticks to the hemoglobin in your red blood cells. The HbA1c test measures how much of that has happened. Why should you care about this number? Because consistently high blood sugar can really mess with your body over time. It’s not just about diabetes, though that’s a big one. We’re talking about increased risks for heart disease, kidney problems, and even vision issues if things aren’t managed. It’s a pretty solid indicator of your metabolic health. Think of it like this: Below 5.7%: Generally considered normal. 5.7% to 6.4%: This range suggests prediabetes, meaning your blood sugar is higher than normal but not yet in the diabetic range. It’s a wake-up call to make some changes. 6.5% or higher: This typically indicates diabetes. If you see this number, it’s time to have a serious talk with your doctor. Even if your HbA1c is just slightly elevated, it can still be a sign that your body isn’t handling glucose as well as it should. It’s one of those markers that gives you a heads-up before bigger problems show up. Getting this test done regularly can help you stay on top of things and make adjustments to your diet or lifestyle if needed. It’s a key part of understanding your long-term health picture [2bef]. Keeping an eye on your HbA1c is more than just a number; it’s a window into how well your body is managing energy and a predictor of future health risks. It’s a simple test that offers a lot of insight. 2. Fasting Glucose This test gives us a quick look at your blood sugar levels after you haven’t eaten for a while, usually overnight. It’s different from HbA1c, which shows a longer-term average. Think of fasting glucose as a snapshot of your body’s current ability to manage sugar. Keeping your fasting glucose in the optimal range is a pretty big deal for staying healthy long-term. When these numbers creep up, it can be an early sign that your body isn’t handling glucose as well as it should. This might mean you’re heading towards insulin resistance or even prediabetes. It’s like a little heads-up from your body. Here’s a general idea of what the numbers mean: Below 70 mg/dL: Could indicate hypoglycemia (low blood sugar). 70-90 mg/dL: Generally considered the optimal range for metabolic health. 90-125 mg/dL: May suggest impaired fasting glucose, a step towards prediabetes. 126 mg/dL and above: Often indicates diabetes, requiring further medical evaluation. It’s important to remember that these are general guidelines, and your doctor will interpret your results in the context of your overall health. Getting this test done regularly is a simple way to keep tabs on your metabolic status and catch potential issues early. It’s a key part of understanding your metabolic health snapshot. Sometimes, even if your fasting glucose looks okay, other markers might be telling a different story. That’s why looking at a panel of tests, not just one, is so important for a complete picture of your health. 3. Fasting Insulin Fasting insulin is a really important marker for longevity, but it often gets overlooked. This test measures the amount of insulin in your blood after you haven’t eaten for at least eight hours. Think of it as a behind-the-scenes look at how your body is handling sugar. Even before your blood sugar or A1C levels start showing problems, high fasting insulin can be an early warning sign. Why does this matter? Well, consistently high insulin levels can point to insulin resistance. This is a condition where your cells don’t respond well to insulin, and your pancreas has to work overtime to produce more. Over time, this can lead to a cascade of issues, including metabolic syndrome, type 2 diabetes, and even cardiovascular problems. It’s like your body’s sugar-management system is starting to break down. Here’s a quick look at what different fasting insulin levels might suggest: Below 5 µIU/mL: Generally considered optimal, indicating good insulin sensitivity. 5-10 µIU/mL: May suggest early signs of insulin resistance or that your body is working a bit harder. Above 10 µIU/mL: Often indicates significant insulin resistance and a higher risk for metabolic dysfunction. Above 20 µIU/mL: A strong indicator of serious insulin resistance and increased risk for type 2 diabetes and related conditions. Keeping your fasting insulin in a healthy range is key for metabolic health and can be a proactive step towards a longer, healthier life. It’s one of those tests that gives you a heads-up long before more serious issues pop up, allowing for early intervention. Lower fasting insulin levels

GLP-1 monitoring labs: what bloodwork to track while on Ozempic or Wegovy So, you’re thinking about Ozempic or Wegovy, huh? Or maybe you’re already on them. These GLP-1 medications are pretty popular for managing blood sugar and weight. They do a lot in your body, and because of that, keeping an eye on your health with blood tests is a good idea. Think of GLP-1 monitoring labs as a way to make sure everything is running smoothly while you’re on this journey. We’ll cover what tests are important before you start and what to keep an eye on as you go. Key Takeaways Before starting Ozempic or Wegovy, get baseline blood tests to check your liver, kidneys, thyroid, and blood sugar. This gives your doctor a starting point. Regular GLP-1 monitoring labs, usually every 3-6 months, help track how your body is responding to the medication. Focus on the trends in your blood test results over time, not just single numbers. Consistent changes often tell a clearer story about your health. While these medications can help with liver health, especially fatty liver, monitoring liver enzymes is still important. Dehydration can affect kidney function, so keeping an eye on creatinine and eGFR levels is a good idea, especially if you have nausea or vomiting. Essential GLP-1 Monitoring Labs Before Treatment Before you start GLP-1 medications like Ozempic or Wegovy, bloodwork isn’t just a box to check—it’s the foundation for safe progress. Lining up certain labs before your first dose helps rule out hidden problems and shows where your health stands right now. Let’s go through what matters most, what tests you’ll probably need, and how these results can shape your starting point. Establishing Your Baseline Health Think of baseline lab work as your health snapshot. It gives your doctor real data about your body today, not just what the scale or blood pressure cuff says. Here’s what you should expect: Fasting blood sugar and HbA1c – to spot undiagnosed diabetes or prediabetes. Kidney function tests (creatinine, eGFR) – so issues like chronic kidney disease don’t go unnoticed. Liver function (ALT, AST, GGT) – these must be checked since GLP-1s are processed through the liver and can sometimes affect it. Lipid panel – shows cholesterol and triglyceride levels, relevant for anyone with weight or metabolic concerns. Complete blood count (CBC) – can reveal anemia or signs of other underlying problems. Thyroid tests (TSH, sometimes T3 and T4) – because these medications can uncover thyroid issues or sometimes be tricky if you already have one. Having these results first means you and your doctor can spot new changes down the road—an advantage if you start feeling off or want to know exactly how your treatment is working. Identifying Contraindications Some lab results might wave a red flag, making GLP-1 treatment not the best option or requiring extra care. For example: Significantly high liver enzymes Reduced kidney function Abnormal thyroid markers If your results fall into these areas, your doctor may delay or adjust your plan, or investigate further to make sure it’s truly safe to continue. Don’t skip—these tests protect you from side effects that might not show up until later. You can even take a look at essential baseline laboratory tests that are often needed prior to your first dose. Key Pre-Treatment Bloodwork Here’s a quick reference table for the core bloodwork your provider will probably order: Test Why It Matters HbA1c, Fasting Glucose Checks for diabetes & blood sugar spikes Liver Enzymes (ALT, AST, GGT) Assesses liver status Creatinine & eGFR Assesses kidney health Lipid Panel Tracks cardiovascular risk Thyroid (TSH +/- T3/T4) Screens for thyroid disease CBC Screens for anemia/infection Before starting, it’s also smart to ask if you should check vitamin B12, vitamin D, or iron/ferritin if you’ve had trouble with those before, or if you follow a restrictive diet. All of these tests are pretty routine, but they matter. They set the groundwork so that if something changes during treatment, you and your provider can catch it early and know whether it’s related to the medication or not. Starting off with baseline labs isn’t just protocol—it’s your own personal health map. And with this information, you’ll be making informed decisions, not just crossing your fingers. For more detail on what to expect, take a look at the basic overview for baseline blood tests most prescribers want to see before you begin. Monitoring Liver Health While on GLP-1 Therapy Your liver is a pretty busy organ, and it plays a role in how your body processes GLP-1 medications like Ozempic and Wegovy. While these drugs aren’t typically known for causing liver problems, it’s still a good idea to keep an eye on things, especially if you have any existing liver conditions. Routine liver enzyme monitoring isn’t usually necessary for everyone starting these medications, but a baseline check before you begin can be helpful. Understanding Liver Enzyme Trajectories When you start a GLP-1 medication, your doctor might order a liver function test. This usually involves checking enzymes like ALT (alanine aminotransferase) and AST (aspartate aminotransferase). These enzymes are normally found inside liver cells. If the liver is stressed or damaged, these enzymes can leak into your bloodstream, and their levels might go up. It’s important to remember that a single elevated reading might not mean much. What doctors really look for are trends over time. A consistent rise in these enzymes could signal that your liver needs a closer look. Potential Benefits for Fatty Liver Disease Here’s something interesting: GLP-1 medications might actually be good for your liver in certain situations. Studies have shown that these drugs can help improve conditions like metabolic dysfunction-associated steatotic liver disease (MASLD), which used to be called non-alcoholic fatty liver disease (NAFLD). They seem to help reduce the amount of fat in the liver and can even decrease inflammation. So, while we’re monitoring for any potential issues, there’s also a chance your liver health could see some benefits. When to Investigate Liver Enzyme