Chromium, molybdenum, and manganese: three overlooked trace elements

What to expect in this article

1. Three names that rarely appear on a test result
2. Three statements fact-checked
3. Chromium: the source itself expresses doubt
4. The documented source
5. Molybdenum: rarely documented
6. Three facts about the three elements
7. The core point in one sentence
8. Manganese: what the source says and what it does not
9. The three in comparison
10. Why these three are not included in the panel
11. Who can benefit from a nutrient panel
12. What a capillary blood test can show here
13. Limitations: what this article also leaves open
14. What matters about these three
Frequently asked questions
Sources

Three names that rarely appear on a test result

The MSD Manual, professional edition, lists nine trace elements as essential: chromium, copper, fluoride, iodine, iron, manganese, molybdenum, selenium, and zinc (as of May 2025).

Four of them come up regularly. Iron, iodine, selenium, and zinc appear in panels, guides, and on packaging. Three others practically never appear: chromium, molybdenum, and manganese.

The obvious explanation would be that they are overlooked. This article examines whether that is true and reaches a different conclusion.

The caution is found in the sources themselves. It is not a gap in our knowledge about these three elements, but the current state of knowledge about them.

Three statements fact-checked

These three statements come up whenever less commonly mentioned trace elements are discussed.

Checked against the evidence

Chromium: the source itself expresses doubt

Chromium is the most unusual case because the same source both lists it and calls it into question.

Regarding its function, the MSD Manual states: Chromium potentiates insulin activity (as of May 2025). Symptoms of deficiency listed there include weight loss, confusion, impaired coordination, and impaired glucose tolerance.

And in the same chapter is the sentence that puts everything into context: However, it is not clear whether chromium should be considered an essential (necessary) trace element (as of May 2025).

The source is both clear and restrained regarding supplementation. It states that it is not known whether chromium picolinate supplementation is beneficial in diabetes mellitus, and continues: Patients with diabetes should not take chromium supplements unless their use is supervised by a diabetologist (as of May 2025).

We reproduce this warning verbatim because it is a warning. This article does not make a recommendation for or against any supplement.

The order of the statements in this chapter is noteworthy. First, a function is identified; then deficiency symptoms are listed; this is followed by a caveat about classifying it as an essential element; and at the end there is a warning against supplementation. Anyone who reads only the beginning takes away a different message than someone who reads to the end.

For the question of a measurement result, this means: A chromium level could be measured, and the source even specifies a range for it. What is missing is an answer to what should follow from a result within or outside that range.

The documented source

The clearest sentence in this entire field appears in the chapter on manganese, and it is four words long.

A reference work that has a separate chapter titled Manganese Deficiency begins that chapter by stating that the described condition is not conclusively established.

This is not negligence but precision. The source describes what is known about an element while also marking where the evidence ends.

That exact sentence is why manganese does not appear on any standard nutrient panel. Without a documented deficiency state, there is no basis against which the measurement can be assessed.

Molybdenum: rarely documented

The evidence regarding molybdenum is different. There is a described deficiency state, but it is exceedingly rare.

Regarding its function, the MSD Manual states: Molybdenum is a component of coenzymes necessary for the activity of xanthine oxidase, sulfite oxidase, and aldehyde oxidase (as of May 2025).

Regarding prevalence, it states: Genetic and nutrition-related molybdenum deficiency have been documented in rare cases (as of May 2025). The cases described involve, on the one hand, genetic defects in the synthesis of the molybdenum cofactor and, on the other, long-term parenteral nutrition without molybdenum supplementation.

Both situations are far beyond what a self-test is designed for. They are identified and treated in a clinical setting. Anyone receiving artificial nutrition through a vein is already under close medical supervision, and an inherited enzyme defect usually becomes apparent early in life.

It is also noteworthy what the diagnosis in the documented case was based on: high sulfite and xanthine levels and low sulfate and uric acid levels in blood and urine. Not on a molybdenum level.

Three pieces of information about the three elements

Three pieces of information from the sources reviewed. They provide context and do not constitute a diagnosis.

Documented information

The second figure deserves a second look. A reference range that starts at 0.05 micrograms per liter places different demands on a laboratory than a value in the milligram range.

And as with every laboratory value, the relevant reference range is the one stated on your own report, because reference values can vary from one laboratory to another (IQWiG, as of April 2, 2025).

The core point in one sentence

This is where the topic can be brought together.

For iron, this situation is described, named, and quantified. For manganese, it is not conclusively documented according to the cited source.

A manganese level would therefore be technically possible but clinically uninformative. It would appear on paper without allowing anyone to say what follows from it.

Manganese: what the source says and what it does not

So that this article does not overstate matters in the other direction: The source does say something about manganese.

Regarding its function, it states that manganese is important for healthy bone structure and is a component of several enzyme systems (as of May 2025). It gives an intake of 1.6 to 2.3 milligrams per day and an absorption rate of 5 to 10 percent.

Regarding the evidence, it contains the sentence from the quotation above, followed by a reference to an experimental study in which severe manganese restriction led to dermatitis and low cholesterol levels (as of May 2025).

What the source does not provide here is a diagnostic procedure. It says nothing about diagnosing or interpreting the significance of a blood manganese level, which is the key point when considering a panel.

The three in comparison

The table places the three elements side by side and adds an element commonly included in panels for comparison. It provides context and does not constitute a diagnosis.

The final line is the benchmark. It shows how much documentation, prevalence, and measurement methodology must be available for an element to earn a place on a panel.

Why these three are not included in the panel

This is where a sentence belongs that a guidebook article rarely contains.

Chromium, molybdenum, and manganese are not included in any of the blood tests reviewed from mybody®x (MYBODY Lab GmbH). Anyone looking for one of these three values will not find it in our portfolio.

Based on what this article says, this is not an oversight. A value belongs on a panel when three things come together: a described condition that it indicates, a method that measures it reliably, and an interpretation that makes something of it. According to the cited sources, at least one of these three elements is missing in each case.

An additional value on a report is not inherently beneficial. It is beneficial when something can be inferred from it, and a burden when it merely adds a number without a point of reference.

What a value without a point of reference does

The last point sounds abstract but has a very concrete aspect. Reference ranges are generally established using measurements from many healthy people, with the limits set so that 95 percent fall within the range (IQWiG, as of April 2, 2025).

This leads to a figure worth knowing: 5 percent of people have results outside the reference range even though they are healthy (IQWiG, as of April 2, 2025). This applies to every individual value in a report.

For a value such as ferritin, this is manageable because a result at the edge of the range is interpreted in the context of other values and how the person feels. For a value for which no deficiency state has been described, this context is missing, leaving only a flagged deviation without an interpretation.

That is precisely the difference between a complete report and a lengthy report. A longer report produces more flagged results but does not answer any more questions.

Who can benefit from a nutrient panel

The comparison concerns whether a panel with the established values will help you.

What a capillary blood test can show here

A capillary blood self-test does not provide a diagnosis. What it can do is document the values for which an established method of interpretation exists.

VitalCheck tests two of the nine essential trace elements, namely selenium and zinc, as well as iron with ferritin and transferrin. Chromium, molybdenum, and manganese are not among them, which is consistent with the sources cited in this article.

Capillary blood test

VitalCheck | Complete Nutrient & Mineral Test

Tests 18 values from the same sample, including selenium, zinc, iron, ferritin, transferrin, calcium, magnesium, phosphate, 25-OH vitamin D3, vitamin B12, folic acid, albumin, CRP, long-term blood sugar, as well as total cholesterol, HDL, LDL, and triglycerides. What the test does not provide: chromium, molybdenum, and manganese are not included. It does not recommend a supplement, specify an amount, make a diagnosis, or replace a medical examination.

Price €169.00 As of 17 August 2026; subject to change

Sample type Capillary blood

Processing time Kit shipping 1–3 business days
Laboratory analysis 3–5 business days after sample receipt

Laboratory Certified medical laboratory
Product page information, accessed 17 August 2026

To VitalCheck

Limitations: what this article also leaves open

The first boundary is time. All statements in this article reflect the status of the cited sources in May 2025. The evidence may change, in which case this article will receive a new date.

The second limitation is selection. The MSD Manual chapters on chromium, molybdenum, manganese, and the overview of minerals were reviewed, along with an IQWiG explanation of reference ranges. Other sources may emphasize different aspects.

The third limitation concerns the individual case. The fact that a deficiency state has rarely been documented does not mean that it occurs in no one. It means that it cannot be clarified through a home testing panel.

The fourth limitation concerns diagnosis. All the classifications in this article provide context; they do not constitute a diagnosis. A diagnosis is made in a medical practice based on several components, and no self-test can anticipate it.

What matters for these three

If you take away just one thing from this article, let it be this: Sometimes, the fact that an element does not appear on any panel is the more accurate answer.

According to the cited source, manganese deficiency has not been conclusively established. Molybdenum deficiency states have been documented in rare cases, and diagnosis in those cases relied on other values. The same source openly questions whether chromium belongs among the essential trace elements at all (MSD Manual, as of May 2025).

It was initially suspected that these three might be overlooked. After reviewing the evidence, the opposite remains true: They do not appear on test reports because the sources say exactly what this article says about them. The interpretation of each result belongs in a medical practice.

Frequently asked questions

Sources

1. MSD Manual, Professional Edition: Overview of minerals, Johnson LE (last full review May 2025) – msdmanuals.com
2. MSD Manual, Professional Edition: Chromium deficiency, Johnson LE (last full review May 2025) – msdmanuals.com
3. MSD Manual, Professional Edition: Molybdenum deficiency, Johnson LE (last full review May 2025) – msdmanuals.com
4. MSD Manual, Professional Edition: Manganese deficiency, Johnson LE (last full review May 2025) – msdmanuals.com
5. IQWiG: Understanding laboratory values correctly, as of 2 April 2025 – gesundheitsinformation.de

The list of the nine essential trace elements is taken from source [1]. The statements on insulin activity, normal plasma levels, symptoms, chromium picolinate, care by a diabetologist, muscle size, and the statement about essentiality are taken from [2]. The information on coenzymes, the rarity of documented cases, and the laboratory values of the documented case is taken from [3]. The verbatim quotation on manganese deficiency and the information on function, intake, absorption, and the experimental study are taken from [4]. The explanation of the reference range is taken from [5]. Information on price, values, sample type, and laboratory comes from the mybody®x product page, accessed on 17 August 2026; processing times follow the central specification for blood tests. All sources were accessed and checked on 17 August 2026.

mybody®x Editorial & Expert Team

Laboratory diagnostics Blood analysis interpretation Nutritional science Nutrigenetics

This article was created by the mybody®x editorial and expert team. The team combines laboratory diagnostics, nutritional science, and the interpretation of blood analyses. Contributors are listed on the authors page.

Published on 17 August 2026 · Last updated on 17 August 2026

The content is for general information only and does not replace medical advice, diagnosis, or treatment. Reference ranges depend on the laboratory, method, and age; the information on your laboratory report is always authoritative.