Many people take vitamins, minerals, and protein powders thinking they’ll boost health and gym performance.

But doctors warn that self-prescribed supplement use can do more harm than good if done without proper guidance.

Taking supplements without testing can hide actual nutrient deficiencies.

For example, symptoms like fatigue or hair fall might be wrongly blamed on “low protein” when the real issue is thyroid imbalance or nutrient imbalances.

Some vitamins — especially A, D, E, and K — are stored in the body. Too much of them can accumulate and cause toxicity, hurting your liver, kidneys or heart.

Supplements like biotin (often taken for hair or nails) can interfere with lab tests, giving false results and distracting doctors from serious issues.

Before adding supplements: ✔ Get a blood test ✔ Talk to a qualified doctor or nutritionist ✔ Take only what’s medically needed ✔ Review intake regularly