Vitamins & supplements: five questions to ask before you buy

Question 1: Do I actually need this?

A varied diet covers most needs for most healthy adults. But some deficiencies are genuinely common in Lebanon:

• Vitamin D — paradoxically widespread here despite the sun, because we cover up, work indoors and wear sunscreen. Studies in Lebanon consistently find a large share of adults below optimal levels. Worth testing, and often worth supplementing — especially in winter, for older adults, and for anyone with fatigue and bone aches their doctor can't otherwise explain.
• Iron — common in women with heavy periods and in restrictive diets. Supplement only after a blood test confirms it; excess iron is harmful, not neutral.
• B12 — vegetarians, adults over 60, and long-term users of acid-reducing medicines (omeprazole and family) or metformin are the classic groups.
• Folic acid — essential before conception and in early pregnancy. This one isn't optional.

Notice what's not on the list: the miracle blends, the detox teas, the "immunity boosters." If a product promises everything, it's marketing.

Question 2: Will it clash with my medicines?

The question almost nobody asks, and the most important one. Real examples we catch weekly at the counter:

• Iron or calcium + thyroid medication — they block levothyroxine absorption; separate by at least 4 hours.
• Vitamin K + blood thinners (warfarin) — direct antagonism.
• St John's Wort + almost anything — this herbal antidepressant weakens contraceptive pills, blood thinners and more.
• Magnesium + certain antibiotics — reduced absorption; space them out.
• High-dose omega-3 + blood thinners — additive bleeding risk; needs a doctor's opinion.

This is why "just a vitamin" deserves ten seconds with a pharmacist. Bring the box of everything you take — we check interactions free of charge.

Question 3: Is this a quality brand or an expensive label?

Supplements are regulated far more loosely than medicines, so brand integrity matters. What we look for before stocking anything: an established manufacturer with pharmaceutical-grade quality control, stated doses per unit that match evidence-based ranges, and honest labeling without disease-cure claims. If a jar promises to "cure" anything, we don't shelve it.

Question 4: What dose, and for how long?

More is not better. Fat-soluble vitamins (A, D, E, K) accumulate — vitamin D toxicity from megadoses is a real, documented harm. Water-soluble ones mostly produce expensive urine beyond your needs, but even vitamin B6 in chronic high doses can damage nerves. Sensible practice: take the tested dose for a defined period (typically 2–3 months), then reassess — ideally with a blood test rather than vibes.

Question 5: What would fix this without a supplement?

The unsexy truth we tell customers daily: for energy, sleep and general wellbeing, no capsule outperforms the basics — protein at every meal, sunlight before noon, a walk on the Corniche, and a regular bedtime. Supplements fill gaps; they don't build the wall.

The bottom line

Buy supplements the way you'd buy medicine: for a reason, at a dose, for a duration, from a brand with standards — and with your pharmacist in the loop. That conversation is free at our counter on Ardati Street, or on WhatsApp. See what we stock on the vitamins & supplements page.