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Picture this, you're sitting in your doctor's office holding your latest blood work, you're tired all the time, your joints ache, your mood feels off, and yet the doctor smiles and says, everything looks normal, but your body is saying something different and deep down you know it. Today on the Infirmed Healing Series, we're pulling back the curtain on what normal really means and why functional tasting can reveal the answers your body has been whispering all along. But what does normal actually mean? When you're told your labs are normal, that's based on something called a reference range.
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Statistical average is drawn from a large population, but here's the catch. Those populations often include people living with a chronic inflammation and metabolic issues, stress, and poor nutrition, so normal doesn't necessarily mean healthy. It often just means common.
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Common is not the same as optimal. Take thyroid health as an example. If your TSH is 4.2, most labs will mark that as within range, but many endocrinology societies and functional practitioners would consider that borderline, especially if you have fatigue, weight changes, or anxiety.
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In functional medicine, we often aim for a more optimal window, typically between 0.5 and 2.5, while also looking at free T3 and T4 to see the full picture. The takeaway. Always ask.
Am I being compared to what's typical or what's truly healthy for me? Conventional blood work is excellent for catching disease and ruling out emergencies. It's designed to answer big binary questions. Is there anemia? Is your thyroid failing? Is your liver in trouble? Or what about the in-between, the years or even decades where your body is adapting, compensating, and quietly blathing red flags? That's where functional testing comes in.
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Functional testing doesn't replace conventional labs. It complements them. It looks at how your body is working across systems, uncovering patterns, and dysfunctions before they escalate into disease.
It can reveal the following. Early stress and adaptation patterns, nutrient and mineral imbalances, digestive insufficiencies, immune dysregulation, and terrain-level changes, the biological soil in which either health or illness takes root. Blood work is valuable, but it's important to understand its limits.
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Blood is a homeostatic fluid. Your body works tirelessly to keep its chemistry stable. That stability can mask early dysfunction, especially in minerals, hormones, and stress physiology.
And because it's a snapshot in time, it reflects that moment, not necessarily the last three months or your intracellular reserves. This doesn't make blood work useless. Far from it.
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But it does mean the numbers need to be read in context. In the context of your symptoms, in the context of your history, and ideally alongside other tools that show the bigger picture. Because no single test, no matter how advanced, tells your full story.
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The patient, the person, is always more important than the paper. Three functional tools that can change the game are the following. Number one, GI map, or stool PCR testing.
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GI map uses quantitative PCR technology to detect microbial DNA, giving us a real-time map of your gut environment. It can identify the following, H. pylori, including virulence factors, pathogenic bacteria, parasites, and yeast, Candida species and fungal overgrowth, immune markers like secretory IgA, as well as intestinal permeability markers like zonulin. One caveat, PCR detects genetic material, which means it can pick up dead microbes as well as living ones.
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That's why results must always be interpreted with your symptoms in mind. This isn't about finding a diagnosis. It's about understanding your gut terrain, the ecosystem that supports or undermines your health.
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Then number two, HTMA, or hair tissue mineral analysis. Unlike blood, which shows tightly regulated levels, HTMA reflects long-term mineral trends and heavy metal accumulation. It can highlight the following, adrenal stress via the sodium potassium ratios, thyroid potential via the calcium potassium ratios, then hidden copper toxicity, as well as stress adaptation patterns like the calcium sheldafins, as well as exposure to metals such as aluminum or lead.
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HTMA does require expert interpretation. Hair can pick up external contaminations and results need to be correlated with symptoms as well as repeat testing. But when used correctly, that's one of the clearest windows into how your body is coping over weeks and months, not just a single moment.
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And then lastly, salivary cortisol and DHEA mapping. Unlike serum cortisol, which is often elevated just by the stress of a needle, salivary testing shows your free bioactive cortisol collected multiple times throughout the day. This helps us see your natural rhythm.
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Are you producing enough cortisol in the morning? Are you crashing the day? Are you wired but tired at night? These insights allow us to tailor recovery strategies, supporting your HPA axis, timing nutrition and exercise, and knowing when to pause detox or prioritize rest. But here's the big picture, functional testing isn't about replacing your doctor's labs. It's about adding more lenses.
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It looks at function over failure and patterns over pathology. Blood work, when read with the whole person in mind, is still a powerful tool. But no test can replace skilled clinical judgment, deep listening and your own awareness of your body.
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If your labs say you're fine, but your body says otherwise, listen to your body. Don't settle for being dismissed or told it's all in your head. When we stop chasing perfect numbers and start asking why our symptoms exist, we shift from frustration to strategy.
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That's when we start patching problems and start truly healing. In the next installment of the Informed Healing series, we'll tackle a big question. How do you know when a test is truly helping or when it might be giving you a false sense of security? We'll break down thermography versus mammography, exploring what each can and can't tell you, and look at how choosing the right screening tools based on your goals, risk factors and stage of life.
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Because the key to Informed Healing isn't just getting tested. It's knowing when a test is your ally and when it may not be telling you the whole story. Join us next month as we cut through the confusion so you can make smarter, more confident choices for your health.