Hair Mineral Test (HTMA)
A non-invasive test that looks at mineral levels and patterns over time using a small hair sample. Helpful for exploring longer-term trends in stress, energy, metabolism and nutrient balance from a functional perspective.
Mineral patterns and elements assessed in hair testing
Hair mineral analysis typically measures essential minerals (such as calcium, magnesium, sodium, potassium, zinc, copper, iron, manganese, selenium and chromium) alongside toxic metals (such as lead, mercury, arsenic, cadmium, aluminium and nickel). It then calculates the ratios between minerals, which reflect metabolic or stress patterns (for example, the calcium to magnesium ratio, or the sodium to potassium ratio). A HTMA can reveal patterns of mineral imbalance, toxic metal exposure, adrenal or thyroid stress and metabolic tendencies that may not be apparent from blood tests.
Rather than focusing only on whether each individual number is “in range”, the test is often used to look at how minerals sit in relation to each other, and how that may tie in with your symptoms and history.
How a small hair sample is collected and processed
Hair mineral analysis is non-invasive and straightforward. A small sample of hair (usually about one tablespoon, or 3 cm in length from the root) is cut from the back of the head, close to the scalp. The hair is analysed using advanced techniques capable of detecting trace elements at very low levels. You can often collect the sample at home, or we can talk through the best way to do it if you’re unsure. There is no need for blood draws or fasting.
When a look at mineral balance may be informative
Hair mineral analysis is considered when you have symptoms that could relate to mineral imbalances, such as fatigue, muscle cramps, mood changes, hair loss, skin issues, stress sensitivity or sleep disturbances. It's also useful if you suspect toxic metal exposure (for example, from your work, hobbies, environment or old dental amalgams).
It can also be a useful additional perspective where symptoms have persisted over time despite changes to diet and lifestyle, and you’d like to explore mineral patterns in more detail.
How hair mineral patterns differ from standard blood results
Blood tests measure minerals in circulation at a specific point in time, which is useful for detecting acute deficiencies or excesses that require medical treatment (for example, very low iron or very high calcium). Hair mineral testing, by contrast, is thought to reflect longer-term exposure and tissue storage, because hair grows slowly (about 1 cm per month) and locks in minerals as it forms.
Blood readings can change from day to day and reflect what’s happening right now. Hair, by contrast, can give an indication of longer-term trends in mineral patterns. GPs are not routinely asked to interpret minerals in this way, as it sits outside standard medical care. On top of this, there are many minerals and potential ratios that could be examined. Without a personalised context, it wouldn’t be practical to test these routinely in primary care. That doesn’t mean your GP has missed something; it reflects the reality that the NHS has to prioritise tests that directly change medical treatment.
Seen this way, hair mineral testing can add to the picture your GP has built, rather than replacing their role.
What hair mineral trends can suggest (and why they are not diagnostic)
When interpreted by practitioners who specialise in hair mineral analysis, results are usually viewed as patterns rather than absolute numbers. Common interpretations include:
Low zinc or copper patterns, which may be linked to immune function, skin health, mood or hormone balance.
High calcium or low magnesium, which is associated with stress, tension or poor stress adaptation.
Elevated toxic metals (lead, mercury, cadmium), which may indicate past or ongoing exposure.
Mineral ratios, which are used to infer adrenal or thyroid function.
It is crucial to emphasise that hair mineral patterns are not diagnostic of specific diseases, and they should never be used to diagnose or exclude medical conditions. Where toxic metal exposure is suspected, blood or urine tests are generally considered more reliable and are the preferred methods in occupational health and clinical toxicology settings.
Using mineral trends to nudge diet and supplement choices
If a hair mineral analysis is done, the results should always be interpreted cautiously and alongside other information, including symptoms, diet, medical history, blood tests and lifestyle factors. Depending on the patterns that emerge, the focus may include:
Emphasising mineral-rich foods in the diet, such as leafy greens, nuts, seeds, whole grains, legumes, seafood, dairy and meat.
Considering whether supplementation may be appropriate, but only where there is also supporting evidence from symptoms or blood tests (for example, if hair shows low zinc and you also have low immune function, slow wound healing and white spots on nails, zinc supplementation may be worth trialling).
Reducing exposure to toxic metals where relevant, for example by addressing old amalgam fillings (in consultation with a dentist), avoiding contaminated water or food sources, or reducing occupational exposure.
Supporting detoxification pathways through adequate hydration, fibre, antioxidant-rich foods and nutrients that support liver function (such as B vitamins, glutathione precursors and sulphur-containing foods).
However, it is essential to avoid over-supplementing based on hair results alone, as excessive mineral supplementation can cause imbalances and side effects.
Symptoms linked to mineral imbalance that always need medical review
You should contact your GP if you experience:
Severe or persistent fatigue, particularly if accompanied by weakness, dizziness or breathlessness.
Muscle cramps, spasms, numbness or tingling.
Significant hair loss, especially if sudden or patchy.
Bone pain or fractures without clear cause.
Symptoms of toxic metal poisoning (for example, abdominal pain, vomiting, confusion, tremor, numbness).
Any symptom that is severe, worsening or concerning.
If hair mineral analysis suggests significant toxic metal exposure, this should always be followed up with appropriate medical testing (blood or urine) and, where necessary, referral to occupational health or a toxicology specialist.
Hair mineral analysis should never replace standard medical investigation or treatment, and results should be viewed as one piece of information among many, not as a definitive guide to health or supplementation.
Intrigued about your minerals?
If you’re dealing with ongoing fatigue, stress, mood changes or other symptoms and are wondering whether mineral patterns could be part of the picture, we can begin with a conversation. Together we can explore what you’re experiencing, what has already been checked, and whether a hair mineral test is likely to add helpful information. Book your free call with me and let's discuss.
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