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How to read a supplement label: 5 things that actually matter

Most people scan the front of the box and move on. The real story is on the back. Here's what to look for before you buy any supplement.

The front of the box is marketing. The back is the product.

Supplementselling is a relatively low-regulation industry. A brand can put 'immune support' or 'energy boost' on the front without proving much. The label on the back, however, has to tell you what is actually in the product. Learning to read it takes five minutes and can save you a lot of money and disappointment.

1. Active ingredient and dosage

The supplement facts panel lists every active ingredient and the amount per serving. This is where you check whether the product actually contains a useful dose.

Example: many vitamin C products claim big benefits at 100mg per tablet. Research on immune support tends to use 200mg to 1000mg daily. A 100mg dose is not wrong, but it's worth knowing what you're getting relative to what the evidence uses.

Look at the amount in milligrams (mg) or micrograms (mcg), not just the ingredient name on the front.

2. Serving size vs. daily dose

This one trips a lot of people. A product might look affordable at first glance, then you notice the serving size is four capsules and the bottle contains 60 capsules. That's a 15-day supply, not 30.

Always calculate: capsules per bottle divided by capsules per serving = number of days. Multiply the price by that to get cost per month.

3. The 'other ingredients' list

After the active ingredients, the label lists fillers, binders, coatings, and preservatives. These are not always bad, but they matter if you have allergies or sensitivities, or if you want to keep your intake clean.

Things worth watching for:

  • Artificial colours or flavours: no functional role, added for aesthetics
  • Magnesium stearate: a common flow agent, generally safe in small amounts but high quantities can impair absorption of some nutrients
  • Proprietary blends: these list a mix of ingredients with a combined dose but don't tell you how much of each. You can't verify whether the effective ingredient is dosed usefully or just present for label decoration.

4. Country of manufacture and third-party testing

Supplement manufacturing standards vary significantly by country. Products manufactured in facilities that follow Good Manufacturing Practice (GMP) standards are held to a higher quality bar. Look for a GMP certification on the label or the manufacturer's website.

Third-party testing (NSF, Informed Sport, or similar) means an independent lab has verified that what's on the label is actually in the product. Not every good product has this, but it's a meaningful signal when it does.

5. Expiry date and storage conditions

Nutrient potency degrades over time and is affected by heat, light, and moisture. A supplement stored at room temperature on a sunny shelf loses potency faster than one kept sealed in a cool, dry place.

If a product is significantly discounted, check the expiry date first. It may still be usable, but know what you're buying.

Why sourcing transparency matters

All of this label-reading is easier when the supplier is transparent to begin with. At Monde, every product in the catalog comes from verified suppliers with documented sourcing. That doesn't replace reading the label, but it means the information on the label is accurate and the product is what it claims to be.

If you have a question about a specific product, reach us at monde-health@sogoodmail.co.

Ready to put this into practice?

All products on Monde are verified and sourced from documented suppliers.

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