Minerals & Trace Elements – Small substances, big impact

A milligram here, a microgram there – it may sound insignificant, but without these tiny amounts, nothing in your body would function properly. Minerals and trace elements are like silent control centres: they trigger nerve impulses, enable muscle contractions, transport oxygen and keep your immune system in balance. They are often overshadowed by vitamins, yet their effect is just as crucial. At hotelsINshape, this topic has long been a priority: our partner hotels focus on nutritional concepts that combine recovery and fitness – and thus naturally place minerals at the heart of their approach.

Minerals are categorised according to where they are found in the body:

Calcium is well known for promoting strong bones and teeth, but it also regulates blood clotting and the transmission of nerve impulses in muscles and nerves. Together with vitamins D and K2, it determines whether calcium actually ends up in the bones – or remains unused. A deficiency can lead to osteoporosis, cramps or cardiac arrhythmias.

Magnesium activates over 300 enzymes, regulates ATP production (energy) and relaxes muscles after exercise. It acts as a natural counterbalance to calcium: whilst calcium causes muscles to contract, magnesium promotes relaxation. Magnesium deficiency manifests as muscle twitching, cramps and nervousness.

These two minerals are both opposites and partners. Potassium maintains the electrical potential in cells, whilst sodium regulates fluid volume. Together, they control heart rhythm, blood pressure and muscle contractions. An imbalance – caused, for example, by too much salt or too little potassium – increases the risk of high blood pressure.

Phosphorus is found in every cell, forms part of ATP (the energy carrier) and is important for bones and teeth. A deficiency is rare, but an excess – for example, from drinking too many soft drinks containing added phosphates – can block calcium absorption and weaken bones.

Iron is a component of haemoglobin and transports oxygen in the blood. Iron deficiency is the most common nutritional deficiency worldwide – symptoms include tiredness, paleness and reduced performance. In athletes, iron deficiency reduces VO₂max and thus endurance performance.

Zinc is involved in over 200 enzymes, strengthens the immune system, aids wound healing and regulates hormone balance – from testosterone to insulin. A deficiency can manifest as a susceptibility to infections, poor skin healing or hair loss.

Iodine is essential for the production of thyroid hormones, which regulate the body’s entire metabolism. Selenium protects the thyroid from oxidative stress during this energy-intensive process. A deficiency can lead to goitre or an underactive thyroid.

Small in number, big in impact – and often overlooked.

Minerals are doubly important for athletes. Sweating leads to the loss of sodium, potassium, magnesium and zinc. Those who train intensively are at greater risk of developing deficiencies – with consequences for recovery, muscle strength and the immune system. Many hotelsINshape partner hotels take this into account: mineral-rich water, recovery meals containing iron-rich ingredients, and snacks containing magnesium and zinc have long been part of everyday life there.

A carefully considered combination – such as whole grains with pulses and vegetables rich in vitamin C – helps to compensate for nutritional deficiencies. The dietary programmes at many hotelsINshape hotels pay close attention to precisely these synergies.

As with vitamins, nutrition is the foundation. However, taking supplements can be beneficial if there is an increased need:

Minerals and trace elements are tiny in quantity, but have a huge impact. They regulate fundamental processes – from muscle contraction to DNA protection. Anyone who understands their importance realises that good health does not happen by chance, but through a daily, conscious intake. Diet provides the foundation, whilst supplements can offer targeted support – it is the interplay between the two that makes the difference. And it is precisely this combination of diet, training and recovery that makes the approach of hotelsINshape so effective.

In the next article in this series, we’ll be looking at gut health – your inner powerhouse. After all, what use are the best vitamins and minerals if your gut can’t absorb them? We’ll show you how the microbiome, diet and immune system work together – and why your gut is far more than just a digestive system.