White Spots on Nails: A Sign of Magnesium Deficiency?

In our daily lives, our nails are exposed to all sorts of stresses. Among them, the appearance of small white spots is a fairly common reaction. Several hypotheses have been put forward as to their cause, including magnesium deficiency. In this article, we will shed light on this question by determining the various potential causes of these streaks and whether or not they indicate a magnesium deficiency.

The Appearance of White Spots on Nails

Nails are composed primarily of keratin, a protein that ensures their strength and elasticity. When there is an accumulation of dead cells beneath the nail surface, this can create whitish spots. The spots usually appear as small dots, but they can also appear as fine lines. They can be observed on one or more nails and will continue to move toward the tip as the nail grows.

Traumatic Causes

The first possible explanation for these marks is shock. Indeed, sometimes a simple blow or pressure on the nail is enough to cause microscopic lesions in the matrix, leading to the appearance of white spots. Professional or sporting activities, housework, and even certain hobbies can cause this type of trauma. In this case, it is a temporary phenomenon that will disappear as the nail grows.

Infectious Causes

In some cases, these whitish streaks can result from a local fungal infection called onychomycosis. This condition is often more difficult to treat than other causes, as it generally requires specific antifungal treatment prescribed by a doctor.

The Role of Magnesium in Nail Health

Magnesium is an essential mineral for the proper functioning of our body. In particular, it plays a crucial role in the development and health of our bones, hair, and nails. This nutrient contributes to the synthesis of keratin, promoting its strength and growth. Thus, a magnesium deficiency can manifest itself through various symptoms, including brittle, split, or slow-growing nails.

Is magnesium deficiency the real cause of white spots on nails?

This question divides health professionals, as some studies link nutritional deficiencies (including magnesium) to the appearance of ridges on the nails. However, most experts agree that the white spots themselves are generally not directly related to a magnesium deficiency. In fact, this type of deficiency tends to result in brittle and deformed nails.

While magnesium deficiency is not necessarily the primary cause of white spots on nails, this doesn’t mean you shouldn’t monitor your intake of essential minerals and nutrients. Recommended intakes of magnesium vary according to age, gender, and specific needs (pregnancy, breastfeeding, physical activity, etc.).

Other potential causes of white spots on nails

1. Allergies: Some people may be allergic to certain chemicals found in cosmetic products such as nail polish, nail polish remover, or nail strengtheners. This allergic reaction can cause whitish streaks.

2. Systemic diseases: Although rare, certain autoimmune or metabolic diseases can cause these marks on the nails. In this case, it is important to consult a healthcare professional for an accurate diagnosis.

3. Zinc: The relationship between zinc and nail discoloration is under research. Although zinc deficiency can cause nail problems, such as brittleness, some experts believe it may also be linked to the appearance of white streaks.

How to prevent and treat white spots on nails?

To avoid the formation of these unwanted marks, several solutions can be considered:

Protect your nails by avoiding trauma, wearing gloves during manual work or activities, and avoiding repeated application of false nails.
Maintain good hygiene by cleaning your nails regularly, avoiding prolonged contact with water, and following the recommendations of a specialist (podiatrist or dermatologist) in case of fungal infection.
Eat a balanced diet rich in magnesium, zinc, vitamins, proteins, essential fatty acids, and other nutrients necessary for overall health and the health of your nails. Foods containing magnesium include green leafy vegetables, dried fruits, oily fish, and whole grains.

In conclusion, while white spots on the nails do not directly indicate a magnesium deficiency, they remain a minor symptom that may signal neglect of our health or lifestyle habits. It is therefore important to pay attention to the signals our body sends us and take care of ourselves to maintain our well-being.