Done With Diets That Don’t Work?

What Functional Nutrition Actually Measures

Standard nutrition advice starts with a food guide. Functional nutrition starts with your bloodwork. We read how nutrient status, inflammation, and thyroid pace show up on paper, then match the plan to those numbers. Many people fall inside the “normal” lab range and still feel depleted, because standard ranges are built to flag disease, not to define where you function at your best.

Optimal ranges reflect Pro-Fit’s functional targets and are a starting point for discussion, not a diagnosis. Decisions about medication remain between you and your prescriber.

Signs Your Nutrition Isn’t Matching Your Biology

Most people who come to us have already cleaned up their diet and still feel stuck. The pattern usually looks like one of these: energy that dips hard in the afternoon despite eating “well”; hair thinning or nails that break even though bloodwork was called normal; digestion that reacts to foods that used to be fine; training that no longer produces the recovery it once did; or mood and focus that track with meals.

Each of these can trace back to a specific, measurable gap — low ferritin, insufficient vitamin D, an inflammatory pattern, or a metabolic marker sitting at the edge of the standard range. The point of testing is to find which one, rather than guessing.

How Nutrition Connects to Gut, Hormones, and Metabolism

Nutrition is rarely a closed system. What you absorb depends on how well your gut is working, and how you respond to food depends on your hormones and metabolic health. A compromised gut lining can leave you eating the right foods and still running low on iron, B12, or magnesium. Thyroid pace sets how quickly you burn what you eat, which is why we keep TSH in view alongside nutrient markers. And insulin sensitivity shapes how your body handles carbohydrates and stores fat, so a nutrition plan that ignores it tends to stall.

Because we assess these systems side by side, the protocol addresses the driver rather than chasing a single symptom. Where a marker points toward a gut or hormone issue, we connect it to the relevant next step rather than treating nutrition as the whole answer.

Who It’s For, and What We Don’t Do

Functional nutrition fits people who want their eating plan built from their own data and are ready to act on it — whether the goal is more energy, better body composition, steadier hormones, or stronger training. It’s a strong fit if you already have labs and want to know what they mean.

To be clear about scope: Pro-Fit is led by Kelsey Koehler, FDN-P, a Functional Diagnostic Nutrition Practitioner, not a physician. We do not diagnose disease, we do not prescribe medication, and we do not promise specific outcomes. Decisions about medication remain between you and your prescriber. What we do is translate your results into a practical nutrition and lifestyle plan and measure whether it’s working.

Testing, Timing & What to Expect

Testing We Commonly Recommend

The right panel depends on your goals, but a functional nutrition workup usually draws on a few groups of markers. A micronutrient assessment looks at how well vitamins and minerals are actually reaching your cells, which can differ from what a single serum value suggests. Iron studies, including ferritin, reveal the stores behind energy, hair, and endurance long before a standard test flags anemia. Inflammatory markers such as hs-CRP show whether your diet and lifestyle are calming or feeding inflammation. Metabolic markers, including fasting insulin and lipid patterns, indicate how your body is handling carbohydrates and fat. Thyroid markers set the pace of metabolism. We don’t run every test on every person — we choose the panel that answers your specific questions, and we tell you when a marker you already have is enough.

What to Expect After Your First Consult

You leave your first consult with a clear, written plan rather than a vague set of intentions. It names the foods worth prioritizing for your results, the ones worth reducing, and any supplement support the data actually justifies, with the reasoning attached, so you understand why each choice is on the list.

From there, most people settle into the plan over the first few weeks and start noticing changes in energy, digestion, or focus. We check in, adjust where your body responds differently than expected, and plan a re-test of the key markers at the eight-to-twelve-week point. That re-test is the honest scorecard: it shows whether the plan is moving your numbers, not just how you feel on a given day. If something isn’t working, we change it. The goal throughout is a nutrition strategy you can sustain, built on evidence from your own body.

Nutrition That Supports Training and Recovery

For active clients, nutrition isn’t just about health markers — it’s what allows the next session to be productive. When recovery stalls, the cause is often measurable: low iron capping endurance, insufficient protein slowing repair, vitamin D affecting strength and immunity, or an inflammatory pattern that keeps soreness lingering. We look for those signals in your data rather than assuming you simply need to train harder. From there the plan supports the specific demands you place on your body: enough protein to rebuild, carbohydrate timed to the work you’re doing, and the micronutrients that underpin energy production and sleep. Because we re-test, we can see whether the changes are translating into the markers that matter for performance and longevity.

Functional Nutrition in Birmingham & Everywhere

Pro-Fit High Performance Medicine is based in Vestavia Hills and works with clients across Mountain Brook, Hoover, Homewood, and greater Birmingham, Alabama. Because our approach is built on lab data and protocol design, the core work — analyzing your panels, building your plan, and refining it — happens whether you meet us in person or online. Lab testing and coaching are delivered by telehealth anywhere in the world, so distance is never a barrier to a plan built from your own data.