Nutrients for Men: what to look out for?

Answered briefly: for men, zinc, magnesium, vitamin D and selenium are above all in focus – zinc contributes to a normal testosterone level in the blood and to the immune system, magnesium to muscles and energy, vitamin D to muscles, bones and defence, selenium to normal sperm formation. Men do not have a fundamentally different vitamin requirement than women – but the dietary reality often looks different: more eating out, more fast food, less often going for check-ups. That is exactly where a targeted look is worthwhile.

Picture two typical everyday routines: one man trains 4×/week at the gym and afterwards quickly eats something hearty. The other works physically, sweats a lot and reaches for the canteen or snack bar at lunch. Both are active – and in both, of all things the nutrients that keep muscles, energy and defence running can run short. This guide shows you which ones those are, what they do in the body and how to secure your basic supply without guesswork.

What is particularly in demand in the male body

Men take in more calories on average and often carry more muscle mass – this influences the requirement for nutrients such as magnesium, which is closely tied to muscle and energy metabolism. At the same time, „eating more“ is not automatically „eating better“: anyone who eats a lot on the go often misses out on fresh vegetables, pulses and whole grains – the main suppliers of zinc, magnesium and B vitamins. This is how gaps arise, not because too little is eaten, but because it is eaten too one-sidedly.

The right expectation here: preparations are no substitute for sleep, exercise and a proper basic diet – they specifically top up where a need actually exists. Whether a product deserves the name or is superfluous is honestly classified in Supplements: sensible or a waste of money?, and whether one can overdo it is clarified in Can you take too many vitamins?.

Zinc: the men's trace element

Zinc is involved in over 300 enzymes – a real workhorse of metabolism. Particularly interesting for men are its EU-approved functions: zinc contributes to a normal testosterone level in the blood, to normal fertility and reproduction, to the normal function of the immune system, to the protection of cells from oxidative stress, to normal cognitive function, to normal DNA synthesis and to the maintenance of normal hair, skin and nails.

Zinc is found in well-available form in animal foods such as meat, cheese and eggs; from plants, pumpkin seeds, oats, nuts and pulses supply a good amount – here clever combining is worthwhile, because phytates in whole grains and pulses slow absorption (soaking and sprouting help). Important: do not take zinc in high doses permanently, because a sustained excess presses on the copper balance – details on this in Zinc and copper in ratio. Daily requirement, sources and signs of deficiency are found in Zinc: effect, daily requirement, deficiency.

Magnesium & vitamin D: muscles, bones, energy

Magnesium is probably the most versatile mineral for active men: it contributes to normal muscle function, to the normal function of the nervous system, to a normal protein synthesis, to a normal energy metabolism and to the reduction of tiredness and fatigue. Anyone who sweats loses magnesium – which is why it is an ongoing topic in strength and endurance sports alike. Which form suits you is clarified in Which magnesium is the best?, and whether morning or evening is better in Magnesium: morning or evening?.

Vitamin D the body largely produces itself – but only with enough sun on the skin. Anyone who spends most of the day indoors or gets out little in the winter half-year often has a lower status. Vitamin D contributes to the maintenance of normal muscle function, normal bones and a normal function of the immune system. How to classify your blood level is explained in Vitamin D: dosage, blood level, winter.

Selenium and the other trace elements

Selenium rightly gets attention with men: it contributes to a normal sperm formation, to a normal thyroid function, to the normal function of the immune system and to the protection of cells from oxidative stress. The top source is Brazil nuts – just two to three cover the daily requirement on paper, which is why one should not overdo it here. More in Selenium: effect, daily requirement, form. To round things off, copper (cell protection, nervous system) and manganese (energy metabolism, normal bones) complete the picture – usually well covered through a varied diet.

Cell protection & energy: antioxidants and B vitamins

Intense sport and everyday stress bring the term „oxidative stress“ into play. According to approved statements, vitamin C, vitamin E, zinc, selenium, copper and manganese contribute to the protection of cells from oxidative stress – a colourful diet with vegetables, fruit, nuts and good oils supplies them naturally. More in Vitamin C: effect and daily requirement and Vitamin E as an antioxidant.

The B vitamins work as a team: B1, B2, B6, B12 and niacin contribute to a normal energy metabolism, several additionally to the function of the nervous system and to normal psychological function. Good sources are whole grains, pulses, nuts and – for B12 – animal foods. Overview: B vitamins from B1 to B12. With a predominantly plant-based diet, B12 in particular is to be kept in view.

Sport, electrolytes and recovery

Anyone who trains a lot loses magnesium, potassium and sodium through sweat. How to replace them sensibly is shown in Electrolytes in sport. For everyday energy, magnesium, iron and B vitamins are central – explained holistically in More energy with magnesium, iron and B vitamins. Which supplement suits your goal is classified in Which supplement suits your goal?, and how to combine several preparations without getting bogged down in Combining supplements correctly. In case of persistent complaints, please seek medical advice.

In practice: dosage, form and timing

A few concrete pointers for everyday life – without guesswork:

• Zinc is best taken with a little gap from large whole-grain or coffee meals, because phytates and tannins slow absorption. Organic forms such as zinc bisglycinate are well tolerated; details in Zinc: bisglycinate vs. gluconate. As a course rather than permanent intake – see Zinc: course or permanent?.
• Magnesium is better split into two portions with a sensitive stomach; many prefer the evening dose. Comparison of forms in Citrate, glycinate or malate?.
• Vitamin D is fat-soluble – best with a meal containing a little fat and, for the bones, sensibly combined with K2 (Vitamin D and K2 together).

Anyone taking several preparations should watch out for interactions: zinc and iron, for example, compete for the same absorption routes, which is why a time gap can be sensible. Guidance is given by Which supplements to separate in time?.

What research is investigating

Well-established textbook knowledge is the role of zinc as a component of numerous enzymes and its function in immune and hormone metabolism – the approved statements are based on this. Beyond that, research is looking at how zinc and magnesium status behave in intensely training people and what role vitamin D plays for muscle function. Much of this is still under investigation, and we derive no efficacy promises from it. Important for the classification: a normal status supports normal functions – an excess brings no additional benefit but, with zinc and selenium, can even be unfavourable.

For whom the closer look is especially worthwhile

Not every man needs to supplement – but in some situations gaps arise more easily:

• Lots of sport, lots of sweating: increased turnover of magnesium and electrolytes.
• Predominantly plant-based diet: keep zinc and above all vitamin B12 in view – see Nutrients for vegans.
• Lots of eating out and fast food: often little vegetables, pulses and whole grains; background in Nutrients with a lot of fast food.
• Little sunlight: check vitamin D status in the winter half-year.

Anyone who, by contrast, eats variedly, gets out regularly and trains moderately already covers a lot through diet. When in doubt, the rule is: check first, then supplement specifically – do not high-dose on suspicion.

Honestly classified

Established and approved are the functional statements on zinc, magnesium, vitamin D and selenium – they refer to normal bodily functions, not to performance enhancement or „more testosterone at the push of a button“. Zinc maintains a normal testosterone level, it does not raise it artificially. The best lever for men's health remains unspectacular: enough sleep, strength training, little alcohol and a vegetable-rich diet. Preparations are the fine-tuning on top – no substitute for the basics.

Matching products from Scheunengut

Fitting for this, you will find the category Men in every life situation, specifically zinc, magnesium and selenium preparations under Minerals as well as individually Zinc and Magnesium. All products are laboratory-tested and made in Germany.

Frequently asked questions (FAQ)

Which nutrients are most important for men?

In focus are zinc, magnesium, vitamin D and selenium. Zinc contributes to a normal testosterone level in the blood and to the immune system, magnesium to muscles and energy, vitamin D to muscles, bones and defence, selenium to normal sperm formation. Which nutrient has priority for you depends on diet, sport and lifestyle – if a deficiency is suspected, a blood test is worthwhile.

Does zinc raise the testosterone level?

No – all that is approved is that zinc contributes to a normal testosterone level in the blood. It therefore maintains a normal function but does not raise the value artificially above the normal. Anyone expecting more here will be disappointed by reputable providers – and that is a good thing.

Do men need a special multivitamin?

Not necessarily. A well-composed multivitamin can secure a broad basic supply, but it is often more sensible to supplement specifically where a need actually exists – such as vitamin D in winter or zinc with a one-sided diet. A diet rich in vegetables, pulses and whole grains remains the basis.

Should physically active men take more magnesium?

Magnesium is lost through sweat, which is why it is a frequent topic with a lot of sport. Magnesium contributes to normal muscle function, energy metabolism and to the reduction of tiredness. Whether supplementation is necessary depends on diet and training volume; the suitable form is explained in our magnesium guide.