Overview of minerals, metals, electrolytes, and salts in the body
Macrominerals and electrolytes: These are minerals that the body needs in larger amounts, often for structural purposes or to maintain fluid and nerve balance. Important macrominerals include:
Calcium (Ca): A building block in the skeleton and teeth, and essential for muscle contraction, nerve conduction, and blood coagulation. Ca²⁺ levels are tightly regulated by hormones (PTH, calcitonin, vitamin D) to ensure proper muscle function, nerve impulses, and bone health
Phosphorus (P): Found as phosphate in bone tissue (together with calcium) and in ATP for energy storage. It is necessary for cell membranes (phospholipids) and is used in the body's buffer systems. Phosphorus interacts with calcium; PTH hormone and the kidneys regulate the balance to maintain skeletal strength and energy metabolism
Magnesium (Mg): A cofactor in hundreds of enzymes, important for protein production, energy metabolism (ATP), and DNA/RNA synthesis. Mg²⁺ also contributes to nerve and muscle function by counteracting calcium's stimulating effect (Mg has a relaxing effect on muscles). Magnesium on å
affects calcium and potassium balance and is necessary for normal parathyroid hormone function (which regulates calcium)Sodium (Na): The main ion in the extracellular fluid. Sodium is critical for fluid balance, blood pressure, and nerve impulses. The kidneys (via the hormone aldosterone) reabsorb Na⁺ to maintain blood volume and pressure. Sodium and potassium balance are closely linked; when sodium is absorbed, potassium is excreted to maintain electrical neutrality.
Potassium (K): The main intracellular ion. Important for heart rhythm, nerve impulses, and muscle contractions. Potassium helps regulate blood pressure (opposite to sodium) and enzyme reactions. Aldosterone stimulates the excretion of K⁺ in the kidneys to avoid hyperkalemia (too much potassium). The correct Na/K ratio is critical; too much sodium leads to potassium loss, while low sodium increases potassium retention
Chloride (Cl): Works together with sodium for fluid and pH balance. Chloride is part of stomach acid (hydrochloric acid, HCl) needed for digestion. Also important in the body’s buffer systems for acid-base balance.
Sulfur (S): Found in amino acids (methionine, cysteine) and therefore in proteins. Sulfur is important for detoxification (phase II in the liver, glutathione), connective tissue structure (sulfur-rich proteoglycans), and skin, hair, and nails (keratin). Although sulfur is rarely mentioned as an “electrolyte,” it occurs as sulfate and other salts in the body.
Important trace elements (essential metals): These minerals are needed in smaller amounts, but are essential for biological processes (often as enzyme components).
Iron (Fe): Essential for hemoglobin in red blood cells (oxygen transport) and myoglobin in muscles. Also a cofactor in many enzymes (e.g. in energy metabolism and DNA synthesis). Iron status is linked to copper – copper is required for iron to be transported efficiently with the protein ceruloplasmin and incorporated into hemoglobin
Zinc (Zn): Important for the immune system, wound healing, skin health, sense of taste, and hundreds of enzyme reactions (e.g. the antioxidant enzyme superoxide dismutase, DNA polymerase, and others). Zinc plays a role in cell division and gene expression.
Copper (Cu): Is part of enzymes involved in energy metabolism, nerve formation (myelination), pigment (melanin production), and connective tissue (lysyl oxidase for collagen). Copper is also necessary for iron metabolism – without enough copper, iron can accumulate in the wrong places and cause “functional iron deficiency”
Iodine (I): Forms the building block of the thyroid hormones (thyroxine/T4 and triiodothyronine/T3) that regulate the body’s metabolism. Adequate iodine is crucial for normal growth, neurological development, and energy metabolism.
Selenium (Se): Is part of selenoproteins, including the antioxidant glutathione peroxidase, which protects cells against oxidative stress. Selenium is also necessary for the conversion of thyroid hormones (T4 to active T3) and for the immune system.
Manganese (Mn): Cofactor for enzymes that are important in bone formation, cartilage formation, and carbohydrate metabolism. Manganese is also needed for the antioxidant enzyme mitochondrial superoxide dismutase.
Chromium (Cr): Important for normal insulin function and glucose tolerance. Chromium is part of the “glucose tolerance factor” that helps insulin transport glucose into the cells, thereby affecting blood sugar regulation.
Molybdenum (Mo): Cofactor in enzymes that break down sulfites (sulfite oxidase), form uric acid (xanthine oxidase), and detoxify alcohol and certain toxins (aldehyde oxidase). Although the requirement is very small, molybdenum deficiency can disrupt these biochemical pathways.
Cobalt (Co): Cobalt is part of the vitamin B₁₂ molecule (cobalamin). Through B₁₂, cobalt is necessary for blood production, nervous system function, and DNA synthesis. The body therefore needs cobalt in the form of vitamin B₁₂ from the diet.
Other trace elements: These are found in the body in very small amounts. They are not always recognized as “essential” for everyone, but may have biological effects:
Lithium (Li): An alkali metal that is not considered essential, but research suggests that trace amounts of lithium may be beneficial for brain function and mood (lithium in therapeutic doses is used for bipolar disorder). Lithium and sodium compete for reabsorption in the kidneys; high salt intake may reduce lithium in the body
Boron (B): Boron is not officially essential, but it affects mineral metabolism. It may contribute to better bone utilization of calcium and magnesium, and is involved in the production of steroid hormones (such as vitamin D, estrogen/testosterone). Boron is found in fruit, vegetables, and nuts, and is believed to support skeletal health and cognitive function.
Silicon (Si): Important for connective tissue and elasticity in the skin, hair, nails, and arteries. Silicon (often in the form of silica) is needed for collagen formation and bone mineralization. Silicon deficiency may lead to brittle hair and nails, while supplementation may improve connective tissue strength.
Vanadium (V): An ultra-trace element that may play a role in skeletal and dental health as well as insulin-like effects on glucose metabolism. It has not been proven essential for humans, but organic vanadium compounds have been shown to influence blood sugar (used experimentally in diabetes). High doses of vanadium may, however, be toxic (kidney and gastrointestinal irritation).
Germanium (Ge): Not known to be essential, but has been studied for possible immune-stimulating and oxygen-enhancing properties. Organic germanium compounds (e.g. Ge-132) have been marketed as dietary supplements, but there is no established biological function in humans. Intake of inorganic germanium may be harmful (kidney damage has been reported with overdose).
How the minerals affect each other (synergists and antagonists)
Minerals and metals do not act in isolation; they influence each other’s absorption and function through a range of mechanisms. Some combinations are synergistic (they support each other’s function), while others are antagonistic (they inhibit or compete with each other):
Calcium and Magnesium: These two must be kept in balance. Magnesium is needed for calcium to be absorbed and function in the cells, and too much calcium may inhibit magnesium absorption. Low magnesium impairs parathyroid hormone (PTH) and may lead to calcium imbalance. An excess of calcium relative to magnesium is problematic. Such an imbalance may cause muscle cramps, high blood pressure and a tendency toward calcification. In fact, pronounced magnesium deficiency may result in secondary calcium deficiency because PTH does not function normally.
Sodium and Potassium: These electrolytes have opposite effects and are regulated inversely by hormones. Aldosterone increases the reabsorption of sodium in the kidneys while potassium is excreted. High salt intake therefore often leads to potassium deficiency, while low salt intake may result in potassium excess . If the Na/K ratio in the Spectrolab test is low, it may indicate that the body has relatively high sodium compared to potassium. This can be seen during stress or incipient “adrenal fatigue”, where the body loses potassium. The right balance is important for nerve conduction and heart function – imbalance can cause high blood pressure (with too much Na) or cardiac arrhythmias (with too little K).
Calcium and Phosphorus: These two minerals are found together in bone tissue as hydroxyapatite. The body regulates them carefully: high phosphate levels lower free calcium in the blood (phosphate binds calcium), and excess phosphorus (e.g. from a lot of soda/processed food) can therefore draw calcium out of the bones. Conversely, high calcium will stimulate phosphate excretion via the kidneys.
Iron and Copper: Copper is necessary for iron to be utilized; a copper-dependent enzyme (ceruloplasmin) oxidizes iron so that it can be transported and incorporated into hemoglobin. Copper deficiency can therefore lead to functional iron deficiency and anemia, even if iron intake is sufficient. On the other hand, too much copper can inhibit iron absorption (they compete for absorption), which can lead to iron deficiency.
Zinc and Copper: Zinc and copper are classic antagonists. They compete for absorption in the intestine via the same transport protein (metallothionein). High zinc intake (e.g. high-dose zinc supplements) can therefore trigger copper deficiency. This can cause symptoms such as anemia, impaired immune function, and neurological problems. If zinc intake is increased further without getting if you do not get enough copper, you may risk copper deficiency. A balanced intake is important – it is often recommended that supplements containing zinc also contain some copper.
Iodine and Selenium: These two trace elements act synergistically in thyroid metabolism. Iodine is the actual raw material in thyroid hormones, while selenium is a cofactor in deiodinase enzymes that activate and deactivate the hormones. Selenium also protects the thyroid gland against oxidative stress when hormones are produced. Selenium deficiency can worsen the effects of iodine deficiency (and vice versa). Therefore, both must be sufficient for the best possible thyroid function.
Lithium and Sodium: These compete in the kidneys for reabsorption.. High-salt foods (Na) cause more lithium to be lost in the urine, while a low-salt diet can icrease lithium retention and, in the worst case, cause lithium toxicity in those taking lithium medically. Even though lithium is not a classic “nutrient”, trace amounts may affect mood. Here, high salt intake may further reduce lithium.
Other interactions: Several trace elements have known antagonists: Too much calcium inhibits iron absorption (so large calcium supplements should not be taken at the same time as iron). High iron can also inhibit zinc and vice versa. Molybdenum in excess can bind copper and trigger copper deficiency – this is seen in ruminants grazing on molybdenum-rich soil, but has been reported in humans who receive contains very high amounts of molybdenum. Cadmium (a heavy metal) competes with zinc at biological binding sites, which we will return to under heavy metals. In short: mineral balance is a finely tuned system in which too much of one can create a relative deficiency of another.
Consequences of mineral imbalances (high or low levels)
When the levels of minerals and electrolytes in the body are not in balance, a range of health problems can arise. Both deficiency states (levels that are too low) and excess (levels that are too high) can have harmful effects:
Electrolyte imbalances (Na, K, Cl): Low sodium (“hyponatremia”) can lead to weakness, confusion, seizures, and in severe cases cerebral edema. High sodium (“hypernatremia”) causes dehydration, high blood pressure, and strain on the cardiovascular system. Low potassium (“hypokalemia”) causes muscle weakness, cramps, irregular heart rhythm, and may be life-threatening in cases of severe deficiency. High potassium (“hyperkalemia”) is also dangerous, as it can trigger potentially fatal cardiac arrhythmias. Potassium and magnesium deficiency often occur together – in fact, magnesium deficiency can lead to low potassium levels that are not corrected by potassium supplementation until magnesium is restored. Chloride deficiency can cause acid-base disturbances (metabolic alkalosis) and digestive problems due to low stomach acid, while too much chloride (e.g. high salt doses) can contribute to high blood pressure and acid load.
Calcium and phosphate: Calcium deficiency (hypocalcemia) can cause muscle spasms, numbness/tingling (paresthesias), cramps (tetany), and over time brittle bones (osteoporosis) because the skeleton is depleted of calcium. High calcium (hypercalcemia) can lead to fatigue, depression, kidney stones, calcifications in soft tissue, and heart rhythm disturbances. In the client’s test, the calcium level is normal, but the ratio to magnesium is high, which may cause symptoms corresponding to functional magnesium deficiency (irritability, muscle tension). Phosphorus deficiency is uncommon (it is found in most foods), but can cause weakness, bone pain, and anorexia. Too much phosphorus – often from soft drinks (phosphoric acid) or additives – can inhibit calcium absorption and contribute to osteoporosis over time, especially if vitamin D is also low.
Magnesium deficiency: Magnesium is often marginal in the diet, and deficiency is common. Early signs are fatigue, reduced appetite, headache, and muscle cramps. Severe magnesium deficiency can cause neurological symptoms (twitching, seizures), cardiac arrhythmias, and low potassium/calcium in the blood. Magnesium deficiency is also linked to insulin resistance and metabolic syndrome. Excess magnesium is rare except in cases of overdose onå supplement/medication (symptoms may include low blood pressure, muscle weakness, drowsiness, and in the worst case cardiac arrest). The kidneys of healthy individuals efficiently excrete excess magnesium, so hypermagnesemia occurs mostly in cases of kidney failure.
Iron: Iron deficiency is the most common mineral deficiency worldwide. It leads to iron-deficiency anemia – low hemoglobin, fatigue, paleness, dizziness, reduced physical performance, and a weakened immune system. Too much iron (hemochromatosis or excessive iron intake) can cause organ damage through oxidative stress – excess iron is stored in the liver, heart, and pancreas and may cause cirrhosis, diabetes, and heart failure if left untreated. The body has no active excretion mechanism for iron, so regulation occurs via absorption; therefore, iron overload is dangerous over time.
Zinc: Zinc deficiency can cause a range of diffuse symptoms: impaired immune function (frequent infections), poor wound healing, skin problems (eczema, acne), hair loss, loss of taste and smell, reduced appetite, and growth retardation in children. Zinc values in the upper range may also reflect that the body is eliminating excess through the hair. Excessive zinc intake can lead to copper deficiency, since zinc, as mentioned, inhibits copper absorption. Symptoms of zinc excess/copper deficiency include anemia, neuropathy (nerve disorders), and a weakened immune response. It is worth noting that the client’s copper level is in the lower normal range alongside high zinc, so unnecessary high-dose zinc supplements without copper should be avoided here.
Copper: Copper deficiency may present as anemia (low hemoglobin despite sufficient iron, due to impaired iron utilization), neutropenia (low levels of white blood cells), osteoporosis, and neurological symptoms (difficulty walking, numbness) in cases of severe deficiency. Excess copper is rare from diet alone, but may occur in hereditary Wilson’s disease or from intake of water from copper pipes/containers. Chronic copper excess is stored in the liver and brain and may cause liver damage, psychological and motor disturbances.
Iodine: Iodine deficiency classically leads to goiter (enlarged thyroid gland) and hypothyroidism (low thyroid function) with symptoms such as fatigue, weight gain, dry skin, hair loss, and depression. In pregnant women, iodine deficiency may impair fetal brain development. The client’s hair iodine is below the normal range. Iodine values in hair should be interpreted with caution, but low values here together with symptoms may indicate that measures are needed (such as increased use of iodine-fortified salt or supplements). On the other hand, too much iodine trigger hyperthyroidism or thyroiditis, or paradoxically inhibit the thyroid gland (“Wolff-Chaikoff effect”). So balance is key.
Selenium: Selenium deficiency can lead to reduced antioxidant defense – one known consequence is Keshan disease (a form of heart failure) seen in areas with extremely selenium-poor soil. Deficiency can also impair the immune system and fertility (selenium is needed for sperm production). Excess selenium (selenosis) causes symptoms such as hair loss, brittle nails, skin rash, a garlic-like odor from the skin, and in severe cases neurological disturbances.
Manganese, Chromium, Molybdenum: Manganese deficiency is uncommon, but can affect bone growth and the metabolism of carbohydrates/cholesterol. Manganese excess occurs mainly with industrial exposure (welding fumes, etc.) and can cause neurological symptoms resembling Parkinson’s disease. Chromium deficiency is also not commonly defined in humans, but suboptimal levels may contribute to poor blood sugar control and insulin resistance. Excess chromium in the form of hexavalent chromium (Cr⁶⁺) is toxic and can cause kidney/liver damage and cancer; trivalent chromium in diet/supplements is considered safe in moderate doses. Molybdenum deficiency is seen practically only in certain genetic enzyme defects or prolonged artificial nutrition without molybdenum – it can lead to brain effects (because toxic sulfites accumulate). High molybdenum intake can interfere with copper status (causing copper deficiency anemia) and increase uric acid levels (causing gout-like complaints).
Other trace elements: Lithium: There is no established “lithium deficiency disease,” but statistically, areas with very low lithium content in drinking water have a higher incidence of mental health problems (depression, aggression). Very small doses of lithium may have preventive effects on dementia according to some studies.
Boron deficiency is not defined, but suboptimal boron may affect calcium metabolism and cognitive functions. Silicon deficiency is also not well defined in humans – however, it is observed that animals on a silicon-deficient diet may develop weaker bones and connective tissue. Excess boron (intake > 20 mg/day) can cause digestive complaints, headache, and skin rash. Excess silicon through diet is not common, but inhalation of silica dust can cause lung disease (silicosis). Vanadium in high doses can cause gastrointestinal irritation, green tongue (a benign effect), and reduced appetite.
Germanium: Organic germanium supplements have in rare cases caused kidney damage at high doses
In summary, imbalances in minerals can affect all systems in the body:
The skeleton is weakened by deficiency of Ca, Mg, P, Mn, or B; nerve and muscle function is affected by Na, K, Ca, Mg imbalances (causing cramps, paralysis, or arrhythmias); blood and the immune system are affected by deficiency of Fe, Cu, Zn, Se (causing anemia and infection risk); metabolism is disrupted by deficiency of I, Se, Cr (causing low metabolism or insulin resistance). Therefore, a balanced intake of minerals is important.
Heavy metals – disturbances of mineral balance and health effects
Heavy metals (e.g. lead, mercury, cadmium, arsenic, lead, aluminum) are metals that have no known biological benefit in the body (except perhaps in tiny trace amounts), and which are toxic in increased quantities. These metals can displace essential minerals from their biological sites and enzymes, and also damage cells directly through oxidative stress.
For example, lead (Pb) can take the place of calcium in bone tissue, thereby disrupting both bone strength and calcium metabolism
Mercury (Hg) binds to selenium, an essential trace element, and forms insoluble complexes – this loss of selenium weakens important selenium enzymes such as antioxidants and may impair thyroid function
Cadmium (Cd) is chemically similar to zinc and can bind where zinc is supposed to act, for example in the kidneys and in enzymes, which inhibits zinc metabolism and over time may cause kidney damage.
High cadmium levels are known to cause kidney failure and bone damage – the disease itai-itai in Japan was caused by cadmium poisoning and led to brittle bones and kidney damage, precisely due to calcium and zinc displacement.) Arsenic (As) can compete with phosphate in energy metabolism (arsenate can replace phosphate in ATP and make it unstable), and binds to sulfur-containing enzymes, thereby inhibiting energy production and detoxification enzymes.
Aluminum can bind to phosphate and to magnesium in the nervous system, and is suspected of contributing to neurological diseases when it accumulates.
In summary: heavy metals disrupt mineral balance by competing with essential minerals for absorption and binding sites. They can accumulate in organs – for example, cadmium and lead accumulate in the kidneys and bones and can displace important nutrients. However, even low levels of heavy metals can have subtle effects. For example, accumulated small amounts of mercury and lead may contribute somewhat to oxidative stress. Essential minerals such as zinc, copper, manganese and selenium are part of the antioxidant enzymes; deficiency in these (as we see tendencies toward here: e.g. somewhat low copper) combined with even small amounts of heavy metals that consume antioxidants (mercury binding selenium) may increase cell damage over time.
Reduction of heavy metal toxicity (detoxification measures)
Prevention and reduction of heavy metal burden is important for protecting health and restoring mineral balance. Here are some measures and principles:
Avoid exposure: The first step is to identify and remove sources of heavy metals. Avoid foods with high mercury content (e.g. large predatory fish such as king mackerel/swordfish), avoid smoke (contains cadmium), check drinking water for lead (old lead pipes), and be cautious when using products that contain heavy metals (e.g. certain old types of paint with lead, mercury thermometers, etc.). When new exposure is stopped, the body can gradually eliminate some of the burden naturally.
Optimize essential minerals: Ensure good status of calcium, iron, zinc, selenium, and other minerals. These can counteract heavy metals by competing for absorption and binding sites. For example, adequate calcium and iron will reduce lead absorption in the intestine (children with iron deficiency absorb more lead than children with good iron status). Adequate zinc protects against cadmium poisoning, and enough selenium protects against mercury. Selenium can bind and shield mercuryø so that it becomes less toxic and vitamin C can, in høgh doses, øincrease the excretion of lead from the body's organs
In practice, this means: eat a nutrient-rich diet or take supplements if needed so that you are not deficient in minerals – the body tolerates environmental toxins better when it is well nourished. In the client’s case, correcting deficiencies (e.g. magnesium, iodine, and copper) will also provide better defense against any heavy metals.
Dietary supplements and chelators for natural detoxification: There are special dietary supplements that can bind heavy metals and help the body eliminate them. Natural binders such as zeolite (volcanic clay mineral) and bentonite clay have a negative charge and a large surface area, and can bind to positively charged metal ions in the gastrointestinal system. These then leave the body with the stool. Alså activated charcoal (medical charcoal) works by å adsorbing toxins in the intestine and is used in acute poisonings. Modified citrus pectin (a sø soluble fiber) can bind heavy metals in the blood and intestines – studies show that it can lower the levels of lead and mercury over time. Such agents can be taken as a course, preferably under guidance, to gently draw out stored heavy metals. These are only examples, and a holistic professional detoxification protocol is recommended. First and foremost, imbalances or deficiencies in minerals, electrolytes, and trace elements should be addressed.
Antioxidants: Because heavy metals cause oxidative stress, antioxidant-rich supplements are useful. Glutathione is the body’s most important antioxidant and detoxification molecule – it binds directly to heavy metals (especially mercury, cadmium, arsenic) and helps the liver neutralize them. Supplementation with liposomal glutathione or precursors such as N-acetylcysteine (NAC) can support the body’s own detoxification. High doses of vitamin C have also been documented to be able to reduce lead burden, and vitamin C in general protects cells against free radicals from heavy metals. Selenium mentioned above functions both as a replacement for what mercury binds (so that selenium-dependent processes are maintained) and as an antioxidant in itself. Vitamin E, alpha-lipoic acid, zinc, copper, and manganese – all antioxidant nutrients – are also important in holistic defense.
Medical chelation therapy: In cases of severe heavy metal poisoning, medical chelators are used. EDTA is a well-known substance that is administered intravenously to bind metals in the blood; it forms stable complexes with e.g. lead, copper, nickel and removes them via the kidneys. EDTA treatment is used under medical supervision in cases of confirmed poisoning (for example lead poisoning with high blood levels). Other chelators are DMSA (for lead, mercury) and DMPS (for mercury, arsenic). Such treatments can quickly reduce metal levels, but they can also remove some essential minerals, so follow-up and re-mineralization are required afterwards. It is therefore generally recommended to try natural detoxification first in order to avoid, among other things, the loss of essential minerals.
Lifestyle and other measures: Good hydration (drink enough completely clean and purified water) and fiber intake help the body eliminate toxins via the kidneys and intestines. Regular exercise and sweating (e.g. infrared sauna) can promote the excretion of some metals through sweat (arsenic and cadmium can to a small extent be eliminated this way). Avoid mineral deficiencies through a varied diet, and consider a broad-spectrum mineral supplement if the diet is inadequate – this ensures that heavy metals do not “gain a foothold” where an essential mineral should have been. In the test’s dietary recommendations, for example, foods rich in magnesium and zinc were suggested, such as nuts, sprouts, cocoa beans, and legumes, as well as sulfur-rich vegetables and whole grains (rich in silicon and other trace elements) – such a diet contributes both minerals and fiber for detoxification.
Ultimately, managing heavy metals is about supporting the body’s own detoxification capacity and avoiding new exposure. For our client, the heavy metal levels appear to be under control; the focus should therefore be on correcting mineral deficiencies to optimize health, while maintaining good detoxification routines to keep the unwanted metals low.
Reservations and disclaimer
This information is for informational purposes only and should not be interpreted as medical advice, diagnosis, or treatment. The test results from the Spectrolabo mineral and heavy metal test are intended as an indication of the body’s mineral and metal status, and should be interpreted in consultation with qualified healthcare professionals. None of the mentioned products, methods, or recommendations are intended to replace professional medical assessment, treatment, or diagnostics.
Uno Vita AS is the importer and distributor of the Spectrolabo mineral and heavy metal test system in Norway and disclaims any responsibility for how the test results are interpreted or used. Users of this test assume full responsibility for their own health and any measures taken based on the test results.
© Uno Vita AS, unovita.no. All rights reserved.
