Food Supplements vs Functional Foods: What's the Difference and Why It Matters

What is a food supplement?

Under EU law (Directive 2002/46/EC), a food supplement is a concentrated source of nutrients or other substances with a nutritional or physiological effect. It is sold in dose form: capsules, tablets, powders with measured scoops. It carries a recommended daily amount. It is classified, labelled, and regulated as a specific category of food.

The key word is concentrated. A food supplement exists to deliver a defined quantity of specific compounds in a controlled, repeatable dose.

What is a functional food?

A functional food is a conventional food product — a drink, a snack, a powder you stir into a recipe — that has been enriched or formulated with added ingredients. Mushroom coffee is a functional food. So is a protein bar with added vitamins, or a juice with added probiotics.

There is no standalone EU regulation that defines "functional food" as a legal category. These products are regulated as regular foods under the General Food Law (Regulation EC 178/2002). They must comply with food information rules, but they don't have the same dosing, labelling, or classification requirements as supplements.

Why does this matter for mushroom products?

Because the amount of extract in the product determines whether it can do anything meaningful.

A typical mushroom coffee contains between 250mg and 500mg of mushroom extract per serving, blended with coffee. That extract has already been diluted, and it's delivered in hot water, which means you're relying on whatever survives the brewing process.

A food supplement capsule delivers a measured dose, in our case, 450mg per capsule, two capsules per day, 900mg total, of extract specifically processed to concentrate the compounds researchers study. No dilution. No heat degradation from brewing. No guesswork about how much you're actually getting.

The published research on functional mushrooms consistently uses extract doses in the range of 750mg to 3,000mg per day. A single cup of mushroom coffee does not come close to the lower end of that range.

Novel Food regulations add another layer.

Under EU Regulation 2015/2283, any food or food ingredient that was not consumed significantly within the EU before May 1997 requires a Novel Food authorisation before it can be sold.

This applies to both supplements and functional foods. But it's particularly relevant for mushroom products because some species have Novel Food status and some don't. The distinction depends on the species, the part of the organism used (fruiting body vs mycelium), and the extraction method.

For example, Cordyceps militaris is classified as Novel Food in the EU. Cordyceps CS-4 (Paecilomyces hepiali), which is the strain we use, is not. That distinction matters enormously for compliance, and most consumers — and frankly, most brands- don't know the difference.

Any company selling mushroom products in the EU needs to verify the Novel Food status of every ingredient. This applies whether you're selling capsules or coffee.

Why Mycogenius chose the food supplement route

We're often asked why we don't make mushroom coffee, mushroom chocolate, or mushroom drinks. The answer is straightforward: we don't believe those formats deliver enough extract to be meaningful.

Our focus is on delivering concentrated, species-specific extracts at doses consistent with those used in published research. That requires a supplement format — capsules or pure powder with a measured scoop — where the dose is controlled, consistent, and verifiable.

Every batch is independently tested in ISO 17025-accredited laboratories. We publish the full Certificate of Analysis for every batch on our website. That level of transparency is only possible when you control the dose and know exactly what's in each serving.

We're not against mushroom coffee as a product category. If someone enjoys the taste and views it as a food, that's their choice. But we think it's important that consumers understand what they're buying. A functional food with a small amount of mushroom powder is not the same as a concentrated extract in a measured dose.

The bottom line

Food supplements and functional foods serve different purposes. One is designed to deliver specific compounds at specific concentrations. The other is a food product with added ingredients.

We chose the supplement route because it's the only format that lets us control the dose, verify the contents, and publish the results. That's what our customers expect, and it's the standard we hold ourselves to.