Cramps, nails, skin: 7 deficiency signs we miss

Silent Deficiencies

What your body has been telling you for a long time, without you hearing it

A deficiency does not shout. It whispers for months, sometimes years, in the form of small signals that are often attributed to stress, age, or season. Yet, behind each nocturnal cramp, each striated nail, each difficult morning start, there is often a precise biochemical substrate: a missing micronutrient, an enzyme running at low speed, a metabolic pathway that is tiring.

What follows is not a list of nutritional curiosities. It is a clinical reading grid > seven signals that most people ignore.

1. Nocturnal cramps and jumping eyelids

Nutrients involved: magnesium, potassium, vitamin B1, vitamin B6.

Nocturnal muscle cramp is the earliest and most recognizable sign of magnesium insufficiency. The muscle, deprived of its contraction regulator, remains in partial hypertonicity: relaxation no longer occurs completely. Palpebral myokymia, this uncontrollable blinking of the eyelid that can last for several days, is an even more subtle signal of the same deficit, affecting a very thin muscle with a low excitability threshold.

Potassium plays in the same register: as the major intracellular electrolyte, it conditions the membrane potential of muscle fibers. Its deficit produces cramps, weakness of lower limbs, and disproportionate physical fatigue relative to effort exerted. Vitamin B1, a cofactor for mitochondrial ATP production, aggravates this picture when insufficient: the muscles lack both energy and relaxation.

Note on forms. Magnesium citrate, the form retained in base One, offers very superior bioavailability compared to magnesium oxide present in most cheap tablets (4% absorption for oxide, against 40% and more for citrate). For a frank and documented deficit, additional supplementation with another form of magnesium - Bisglycinate, Glycérophosphate, malate or threonate - may be necessary. base One provides the foundation; a dedicated supplement takes over if needs are increased.

Populations at increased risk Athletes, heavy coffee drinkers (caffeine increases urinary magnesium excretion), women in the luteal phase, people under chronic stress, patients on diuretics.

2. Striated, white spotted or brittle nails

Nutrients involved: zinc, biotin (B8), vitamins B12 and B9, vitamin C, glycine.

White spots on the nails (leuconychia) are often attributed to a lack of calcium: this belief is inaccurate. They most frequently indicate a zinc deficiency, an essential trace element for keratinization and synthesis of structural proteins in the nail. Longitudinal stripes, meanwhile, signal more an insufficiency in biotin, vitamin B12 or B9; they can also reflect a deficit in vitamin C, whose hydroxylases condition the quality of collagen bridges in the nail matrix.

Brittle spoon-shaped nails (koilonychia) point to iron deficiency: this does not fall within base One's perimeter (iron is intentionally absent from the formula for reasons of absorption antagonism), but the vitamin C present in base One improves the absorption of dietary non-haem iron by converting ferric iron into ferrous iron, the only form actively transported by the enterocyte.

Note on forms. Zinc citrate, present in base One, has significantly superior organic bioavailability compared to zinc oxide or sulfate. The dosage is intentionally moderate (5 mg per dose) to preserve the zinc/copper balance over time.

3. Dry skin resistant to all creams

Nutrients involved: beta-carotene (provitamin A), zinc, vitamin C, vitamin E, riboflavin (B2), glycine.

When cutaneous dryness persists despite careful external hydration, the problem comes from within. Vitamin A, which the body synthesizes from base One's beta-carotene according to its needs, conditions the differentiation of epithelial cells and sebum production. Its deficiency produces excessive keratinization, a rough texture, and dull skin resistant to any topical application.

Zinc ensures wound healing and cellular renewal; vitamin C is the obligatory cofactor for hydroxylases that build collagen bridges in the skin. Glycine, of which one-third of residues constitute the triple helix of collagen, completes this first level of action. Riboflavin (B2), in case of insufficiency, produces a characteristic seborrheic dermatitis around the nose, ears, and eyebrows, a sign to distinguish from simply oily skin.

Note: Omega-3s (EPA/DHA) play a central role in the composition of cutaneous cell membranes and the modulation of inflammation. Liposoluble, they require an oily vector incompatible with base One's water-soluble powder formula. In case of very dry skin, eczema or chronic inflammation, separate supplementation with omega-3s (fish oil or algae) could be indicated.

4. Mood swings, anxiety and irritability without cause

Nutrients involved: magnesium, vitamins B6 (P5P), B9 (5-MTHF), B12, glycine, L-glutamine.

Anxiety and irritability are not exclusively psychological: they have a measurable biochemical substrate. Magnesium is the regulator of neural excitability; its deficiency reduces GABA production, the main inhibitory neurotransmitter in the central nervous system. Vitamin B6 as P5P is the direct cofactor for glutamate decarboxylase, the enzyme that synthesizes GABA, as well as pathways for dopamine and serotonin production. Glycine, via its receptors in the brainstem, exerts a complementary inhibitory action. L-glutamine acts as a direct precursor of GABA.

Active vitamin B9 (5-MTHF) and methylcobalamin (B12) condition the methylation cycle, essential for monoamine synthesis. A polymorphism in the MTHFR gene, present in 30 to 50% of the population, reduces the conversion of ordinary folic acid into its active form, compromising methylation and potentially fueling a treatment-resistant anxiety-depressive picture. The 5-MTHF form in base One circumvents this enzymatic blockage.

Clinical sign orienting A treatment-resistant anxiety-depressive syndrome, associated with elevated plasma homocysteine levels on blood tests, constitutes a direct indication to explore B6, active B9 and B12 status, as well as to test the MTHFR polymorphism.

5. Light sleep, night wakings and difficult falling asleep

Nutrients involved: magnesium, glycine, vitamins B6 and B3, potassium, L-glutamine.

Sleep is a biochemical cascade, not a passive state. Its quality depends on the synthesis of serotonin then melatonin (tryptophan/B6 pathway), nocturnal GABAergic tone (magnesium, glycine, L-glutamine as a GABA precursor), and regulation of membrane potential in wakefulness neurons (magnesium, potassium).

Glycine deserves special mention: taken at the end of the day, it lowers central body temperature through peripheral vasodilation, a physiological signal that triggers sleep onset. Its deficiency is manifested by prolonged sleep latency and subjectively poor sleep quality, even with sufficient duration.

Wakings between 3 and 4 AM often accompany nocturnal glycemic dysregulation: cortisol rises too early to compensate for relative hypoglycemia. Chromium (picolinate) present in base One improves insulin sensitivity, while evening magnesium contributes to stabilizing nocturnal glycemia by limiting cortisol secretion.

6. Persistent hair loss and dull hair

Nutrients involved: zinc, biotin (B8), B9 (5-MTHF), vitamin B12, selenium, iron (indirectly), beta-carotene.

Physiological seasonal shedding does not exceed a hundred hairs per day over four to six weeks. Beyond that, telogen effluvium sets in: the hair cycle is disrupted, follicles prematurely enter the resting phase. Zinc is the primary suspect, as a cofactor for keratinogenesis and synthesis of structural proteins in hair. Biotin (B8), whose partial production by intestinal microbiota makes it sensitive to any dysbiosis or antibiotic therapy, acts on carboxylase of keratin. B9 and B12 condition the cellular division of keratinocytes.

Hair loss associated with intense fatigue and pallor points to iron deficiency (low ferritin). Iron is absent from base One for reasons of absorption antagonism with zinc and copper via DMT-1 transporter; however, vitamin C and beta-carotene in base One significantly improve the absorption of dietary non-haem iron, providing indirect support for this deficit.

Clinical note: ferritin is the preferred marker for iron status, not haemoglobin. Ferritin below 30 ng/mL frequently associates with hair loss and fatigue without frank anemia. Its correction is exclusively dietary or via isolated iron supplementation, dosed under medical supervision.

7. Repeated colds and slow healing

Nutrients involved: vitamin C, zinc, selenium, vitamins B6, B9, B12, beta-carotene.

An immune system that fails at every season, superficial wounds that take time to close, recurring canker sores: these manifestations have a common micronutritional denominator. Vitamin C at 580 mg per dose of base One supports immunoglobulin production, NK cell activity, and lymphocyte proliferation, while regenerating oxidized glutathione in neutrophils during bacterial attack phase. Zinc conditions the maturation of T lymphocytes. Selenium activates glutathione peroxidases, essential antioxidant enzymes for cellular resistance to viral infections.

Beta-carotene (provitamin A) differentiates epithelial cells of respiratory and digestive mucosa, first physical barriers against pathogens. B6, B9 and B12 ensure lymphocyte cellular division: without them, the adaptive immune response establishes more slowly and exhausts faster.

Note on vitamin D. Vitamin D is absent from base One: liposoluble, it requires an oily vector for proper assimilation and cannot stably coexist with a water-soluble powder formula. In Switzerland, where winter sunlight is structurally insufficient for cutaneous synthesis, separate supplementation in vitamin D3 could be a complementary priority to base One.

How to check your status?

Three approaches logically complement each other.

• Targeted biological assessment. Schedule an appointment with a qualified practitioner in orthomolecular medicine or micronutrition.

• Structured self-observations. A symptom journal kept over two weeks reveals patterns that sporadic consultations miss: correlation with meals, cycles, physical efforts, or stress periods.

• Orthomolecular trial cure in three points.

• Micronutritional laboratory analyses before

• Regular intake over 90 days

• New identical analyses

About iron and calcium These two minerals are intentionally absent from base One: their simultaneous presence with zinc in a multi-micronutrient formula would cause mutual absorption inhibition via the intestinal DMT-1 transporter, reducing the effectiveness of the entire formulation. Vitamin C (580 mg per dose) and beta-carotene in base One directly improve the absorption of dietary non-haem iron; potassium citrate and magnesium support bone calcium fixation. Thus, base One indirectly acts on these two deficits through absorption synergy.

The common mistake is to seek a single deficiency. Micronutrient deficits almost always present in combinations because metabolic pathways are interconnected. Treating magnesium without B6, zinc and selenium, or B9 without B12, is like tuning an orchestra by playing only one note.

Author: David Giovenco

Micronutrition Researcher · President, International Francophone Academy of Orthomolecular and Integrative Medicine · Founder & Formulator nuho

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