Bromelain

A pineapple enzyme · measured in activity, not just weight

All articles checked for accuracy against the GB NHC Register and all sources have citations with verified links to their relevant studies.

Bromelain is a pineapple-derived enzyme measured by how much activity it has, not merely by milligrams. WellsparQ labels show activity (GDU) so you know what the enzyme can do under set conditions.

This article explains what bromelain is, where it comes from, how its activity is measured, how WellsparQ declares it on labels, and what the scientific literature actually covers — plus the regulatory position on claims. It aims to be clear about what is known, what is not, and how the ingredient is used in our products.

Ingredient Snapshot

What it is

A group of protein‑digesting enzymes derived from pineapple.

Where from

Extracted from the pineapple plant, Ananas comosus (stem or fruit).

Known for

Measured by activity units (GDU/MCU); commonly used as a plant‑based proteolytic enzyme.

In WellsparQ

• DigestEase Complex3 mg
• JointEase Blend5 mg

Most supplement ingredients are described by how much is in the capsule. Bromelain is a little different: it is an enzyme, so what matters is not only its weight in milligrams but how active it is. That is why a WellsparQ label will read "Bromelain (6GDU)" rather than milligrams alone. This page explains what bromelain is, where it comes from, how its activity is measured, and — carefully — what the research has and has not established.

What bromelain is, and where it comes from

Bromelain is a group of protein-digesting (proteolytic) enzymes obtained from the pineapple plant, Ananas comosus ^¹². It is not a single molecule but a mixture of enzymes and related compounds. Two sources are used commercially: stem bromelain, extracted from the stem left after harvest, and fruit bromelain from the flesh. Stem bromelain is the form most used in supplements and the most studied ^¹.

Because it is derived entirely from pineapple, bromelain is a plant-based enzyme and is suitable for vegans — worth stating clearly, since many digestive-enzyme ingredients (such as pepsin or pancreatin) are animal-derived. It is one of the more historically familiar plant enzymes, having been isolated and studied since the late nineteenth century ^¹.

Measured in activity: what "GDU" means

An enzyme's usefulness depends on whether it can still do its job, and enzymes can lose activity with heat, time and processing. So bromelain is standardised by activity units rather than weight alone. The unit you will most often see is the GDU — Gelatin Digestion Unit — which measures how much protein (gelatin) a given amount of the enzyme can break down under set conditions ^¹. A related unit, the MCU (Milk Clotting Unit), is also used; the two are broadly proportional ^¹.

This is why the WellsparQ label states both a weight and an activity figure. "Bromelain (6GDU)" tells you the enzyme in that capsule carries 6 Gelatin Digestion Units of proteolytic activity — a declared, measurable amount of what the enzyme can do, not just how much powder is present.

How WellsparQ measures it

Bromelain appears in two WellsparQ formulas, in both cases as a small, precisely declared enzyme component.

Source: WellsparQ Supplements Database. The DigestEase card is characteristically exact: bromelain provides 6 GDU, "papain and three graded proteases complete the enzyme set". As a pineapple-derived enzyme, it is suitable for vegans. These are modest amounts — a supporting enzyme line, declared honestly, not a concentrated therapeutic dose.

What the research has examined — with its limits

Bromelain has a genuinely broad research literature, and it is fair to describe it as an actively studied enzyme. Review articles catalogue laboratory and clinical investigation into anti-inflammatory, anti-oedema (anti-swelling), digestive and other actions ^¹². Two things must be said honestly alongside that.

First, a great deal of the evidence is preclinical — cell cultures and animal models — and the human trials that exist are often small, of varied quality, and use different bromelain preparations and doses, which makes them hard to compare ^¹². A promising signal in a review is not the same as a settled conclusion.

Second, and importantly, the doses studied in that research are typically far larger, and standardised to far higher activity, than the few milligrams present as a supporting enzyme in a general formula. Evidence generated at one dose does not automatically apply at another.

Where bromelain is firmly established is in a specific, prescription-only medical setting quite separate from food supplements. A concentrate of proteolytic enzymes enriched in bromelain (brand name NexoBrid) holds a European Medicines Agency marketing authorisation, granted in 2012, for the removal of dead tissue (eschar) from deep burns in a hospital setting ^³. Its use has been described in European clinical consensus guidance for burns care ^⁴. This is a licensed medicine applied by specialists to wounds — it is not a health claim for a pineapple-enzyme supplement, and the two should never be conflated. It is mentioned here only as an accurate illustration of how well characterised the enzyme's proteolytic action is.

The claims picture

As an enzyme, bromelain has no authorised health claim under retained EU Regulation 1924/2006. Enzymes, like botanicals, fall outside the list of permitted general-function claims, and such claims have in any case been on hold since around 2010 ^⁵. EFSA has not authorised any digestive, anti-inflammatory or joint claim for bromelain. WellsparQ therefore makes no benefit promise for it. The research above is reported as research, with its limitations — and the licensed burns medicine is described as exactly that, a separate regulated product, not a supplement benefit.

Where it fits your day

In DigestEase and JointEase, bromelain is one measured line in a set of plant enzymes — declared not just by weight but by activity, in the honest, precise way WellsparQ prefers. Rooted in nature, backed by research, and careful to claim only what the evidence and the rules allow.