Do you really need supplements?
The answer isn't automatic. Some deficiencies need to be investigated through clinical evaluation and, when indicated, lab work — supplementing without need isn't harmless.
What usually deserves attention
IronExtra caution
Deficiency can cause fatigue, weakness, and hair loss — but excess also carries risks. Never supplement iron without a lab test confirming the need.
Vitamin B12
Important for energy and the nervous system. Insufficient intake of animal-based foods can lower your levels.
Vitamin D
Related to bones, immunity, and possibly energy. Deficiency is common and can be investigated with a blood test.
Calcium
Essential for bones and muscles — found in dairy, dark leafy greens, and legumes.
Magnesium
Involved in hundreds of reactions in the body, including muscle function and sleep.
PotassiumExtra caution
Essential for heart and muscle function. Both deficiency and excess can be dangerous — supplementation without medical guidance is not safe.
Folate
Important for cell formation — found in dark leafy greens and legumes.
Zinc
Related to immunity, wound healing, and, in some cases, hair health.
Signs that deserve investigation — not self-medication
If you have these signs, seek medical evaluation before supplementing on your own
- Persistent fatigue
- Hair loss
- Muscle weakness
- Paleness
- Weak or brittle nails
- Tingling
- Mood changes with no clear cause
- Very restricted eating for weeks
Indiscriminate supplementation is not recommended. Iron and potassium deserve special attention: inadequate doses, without medical guidance, can cause health problems. Lab work and medical evaluation are the right way to decide what — and whether — you need to supplement.