Normal on Blood Tests Are Not the Same as Optimal
Part of the Functional Lab Testing guide
This article applies to almost anyone who has ever had blood work ordered by a doctor.
One of the first questions I ask any patient is whether they have had blood work or any lab testing done, and close to 99 percent of the responses I get are: “Oh, I’ve already had blood testing done and everything was normal.”
Yet when I evaluate the results myself, they are far from normal. Normal blood test results are not the same as optimal.
Normal blood test results are not optimal
The image above pretty much says it all: someone is obviously not feeling well, yet they are told everything is fine. Unfortunately, this is the experience of millions of people every day, and it is a major difference between conventional diagnosis and functional medicine.
Functional medicine approaches a patient with a slightly different lens, seeing what is going on not in terms of disease or pathology, but in terms of dysfunction. It is also worth remembering that even when modern medicine gets the diagnosis right, its primary tools are drugs or surgery, which can change symptoms but do not heal the body.
A traditional lab report lacks meaning. Anyone who has looked at a blood chemistry report knows it can feel deliberately obscure: a long list of names, a column of numbers, an occasional H or L, a reference range, and unfamiliar units. The problem is not a lack of data, the average panel has dozens of biomarkers, but the absence of a method powerful enough to draw the meaning out of the numbers. No wonder the most common thing a patient hears is “everything looks normal.”
Why normal blood test results are a problem
The reference ranges most doctors use are based on a population average, not on the optimal physiological range for your age and sex. Most standard ranges come from a bell curve, where 95 percent of the population is called normal and the outer 2.5 percent on each side is flagged. That range is built on statistics, not on whether a value represents good health.
Because they are statistical, these ranges drift year to year. As the population becomes more dysfunctional, obese, and cardiovascular-diseased, the normal range gets wider and wider, so more people test as normal. Ranges even vary from state to state. What all this means is that standard ranges are usually too broad to catch a problem before it becomes pathology, so by the time your labs are finally flagged abnormal, disease is often already present. The black-or-white thinking, diseased or healthy, never truly prevents anything.
What you actually want is optimal, not just normal. The functional approach to blood chemistry centers on changes in physiology, well before pathology.
Why functional medicine doctors discover more
A functional medicine doctor uses ranges based on optimal physiology rather than the average population. That tighter functional range lets us read the gray area that sits inside the standard normal range but still signals that something is off. It increases our ability to detect changes in function, and more importantly, it lets us intervene early, with nutrition, organ-system support, or further testing, to remove what is keeping you from optimal function.
To summarize:
- Do not settle for normal ranges of blood chemistry
- Normal is almost never optimal
- Lab analysis should reveal functional highs and lows, not just High or Low
- Lab analysis should usually lead to nutritional recommendations, organ-system risk insight, and further testing
Your life is your medicine.
If something here rang true for you, the next step is a conversation. Start with a free consult, then we can work on your baseline together.
Reviewed by Dr. Daniel Gonzalez, DC.
