By the Zespo team · Updated 5 November 2026
If fresh pineapple makes your tongue tingle, that is bromelain at work. Bromelain is a group of protein-digesting enzymes found in the pineapple plant (Ananas comosus), and it is also why fresh pineapple is used to tenderise meat.
Stem or fruit?
Bromelain is present in the fruit, but commercial bromelain is extracted mainly from the stem, a by-product of pineapple processing.
What does GDU mean?
Enzymes are measured by activity. Bromelain is usually labelled in GDU (gelatin digesting units) per gram or per serving, which tells you more than the weight alone.
Why is it paired with quercetin?
Bromelain is commonly combined with quercetin in one capsule. Check the label for the amount of each.
What to check before you buy
- The amount of each ingredient per serving, not just per capsule
- How many capsules make one serving and how many servings are in the pack
- Whether any ingredient sits inside an undisclosed "proprietary blend"
- The veg/non-veg mark and the manufacturer details on the pack
Label facts: Zespo Quercetin with Bromelain and Elderberry 650 mg - 60 Capsules
- Serving size: 1 capsule · 60 servings per container (60 veg capsules)
- Quercetin dihydrate (98%), source Sophora japonica: 400 mg per serving
- Bromelain (2400 GDU), pineapple source: 150 mg per serving
- Elderberry extract: 100 mg per serving
- Total: 650 mg per serving · Other ingredients: veg capsule (vegetable cellulose)
- Made in India in a GMP-certified facility
See Zespo Quercetin with Bromelain and Elderberry 650 mg - 60 Capsules on zespo.in · Also on Amazon.in
About Zespo: brand facts and product index · All Zespo links
Zespo products are food supplements, not medicines. This article is for general information and is not medical advice. Take supplements as directed on the label and speak to a qualified healthcare professional if you are pregnant, nursing, taking medication or have a medical condition.
Next step: See the full label on zespo.in · Buy on Amazon.in · Zespo store on Amazon.in
More label guides: Quercetin explained · Black elderberry explained · Citrus bergamot and olive leaf explained
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