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Buying food supplements seems simple… until you have to compare dosages, nutrient forms and the claims printed on the packaging. Between “natural” formulas, wellness capsules and blends that promise to do everything, it’s easy to pay for a composition that’s not very transparent or poorly suited to your needs.
Before you place an order, three pitfalls are particularly common:
The first thing to compare is the recommended serving, not the figure highlighted on the front of the product. For vitamins and minerals, check the amount provided per dose as well as the percentage of NRV – the nutrient reference value.
The form of the nutrient also matters. Magnesium citrate, for example, contains a precise amount of elemental magnesium, which must be distinguished from the total weight of the compound. The product page for WeightWorld Magnesium Citrate states 740 mg of citrate per capsule, of which 222 mg is elemental magnesium. Useful information for comparing different formulas on an equivalent basis.
For amino acids intended for energy support or sports performance, also look at the number of capsules needed to reach the stated dose. WeightWorld L-Citrulline 3000 mg provides 3,000 mg of L-citrulline per serving of four capsules, with 240 capsules in total.
A natural food supplement isn’t necessarily better suited to everyone. Take the time to read the full ingredients list, the capsule composition and any declared allergens.
Vegetarians and vegans can look for an HPMC capsule and check the relevant dietary claims. Nutri&Co’s organic French spirulina is described as vegan, gluten-free, and free from additives and excipients. Conversely, WeightWorld Krill Oil contains shellfish and a fish gelatine capsule shell.
When it comes to digestion, a formula that combines probiotics and digestive enzymes doesn’t have exactly the same goal as a simple enzyme blend. The Nutri&Co Digestive Enzymes product contains amylase, protease, lactase, lipase and cellulase, as well as fennel, peppermint and ginger. If you’re sensitive to certain herbs or have been diagnosed with a digestive condition, seek advice from a healthcare professional.
A pot of 40 capsules doesn’t necessarily mean 40 days of use. Check the number of capsules to take per day and the duration stated by the manufacturer. A formula taken just once a day will be easier to fit into your daily routine than a product requiring multiple doses, especially if you travel or follow a regular sports programme.
Storage conditions also matter: most supplements should be kept in a cool, dry place, away from light and out of reach of children. Stick to the dose stated on the label and avoid combining several products that contain the same vitamins, minerals or stimulants.
Why this choice suits this profile: A daily dose and a pot of 240 capsules make it easy to establish a routine, especially for adults who want to compare clearly stated magnesium intakes.
The product page clearly distinguishes the citrate weight, 740 mg, from the amount of elemental magnesium, which is 222 mg per capsule.
A citrate form, a vegan capsule, gluten-free and lactose-free, with 222 mg of elemental magnesium per capsule.
Why this choice suits this profile: This format is suitable for adults looking for a marine source of omega-3, with a detailed composition and a supply stated to last three months.
The product page details the amounts of krill oil, omega-3, EPA and DHA, rather than just communicating the total weight.
1,200 mg of krill oil per serving of two capsules, including 140 mg of EPA and 70 mg of DHA.
Why this choice suits this profile: Athletes who organise their intake around training sessions benefit from a clearly defined serving and protocol.
The dosage corresponds to a precise serving of four capsules, with a daily limit stated by the manufacturer.
3,000 mg of L-citrulline per serving, 240 capsules, a vegan and gluten-free formula.
Why this choice suits this profile: One capsule in the evening can help adults who want to structure their routine during travel or periods of irregular hours.
The composition and timing of the dose are clearly stated: 1 mg of melatonin per capsule, taken approximately 30 minutes before bedtime.
A vegan formula made in Germany, based on melatonin, ashwagandha, lemon balm, passionflower and magnesium.
We’ve put together a comprehensive selection, updated in real time, of products that meet these strict selection criteria and European safety regulations.
Food supplements are designed to complement a varied diet and a balanced lifestyle, not to replace them. Caffeine, found in particular in certain sports supplement formulas, isn’t suitable for everyone. The Amok product contains 125 mg of caffeine per capsule and states restrictions for pregnant or breastfeeding women, as well as for people with heart problems or high blood pressure.
Melatonin, ashwagandha, zinc, omega-3 and certain herbs can also interact with medications. If you are pregnant, breastfeeding, on regular medication, have an allergy or a health condition, seek advice from a doctor or pharmacist. Also avoid combining several products aimed at the same goal without checking the total intakes.
The duration depends on the formula, the dosage and the goal you’re aiming for. Some pots cover 20 days, others several months. Follow the instructions on the packaging and regularly reassess whether the product is still beneficial, rather than automatically continuing to take it.
It’s possible in some cases, but you need to compare the compositions carefully. Two products may contain magnesium, vitamin B6, zinc or caffeine. If you are on medication or in a particular situation, it’s best to seek the advice of a healthcare professional.
Wellness capsules are convenient to dose and easy to carry, but they aren’t always the most suitable option. Spirulina tablets, oils in capsules or powders may suit other preferences. The choice should mainly depend on the dose, the composition, allergens and how easy it is to fit the product into your daily life.