Feuilles de Ananas comosus

Bromelain, the primary active compound in Ananas comosus leaves, functions through proteolytic activity, meaning it breaks down proteins. It modulates the inflammatory pathway by inhibiting the production of pro-inflammatory cytokines and prostaglandins. Additionally, bromelain reduces edema by increasing tissue permeability and clearing fibrin clots. This mechanism supports its traditional use for trauma-related swelling and osteoarthritis. Evidence for this mechanism of action is rated Level C based on pharmacological studies.

You should avoid taking Ananas comosus bromelain supplements if you are on anticoagulant medications like Warfarin. Bromelain exhibits anticoagulant properties that can potentiate the effects of blood thinners, significantly increasing the risk of bleeding and bruising. Medical guidelines recommend discontinuing bromelain at least two weeks before scheduled surgery to prevent hemorrhagic complications. This interaction is supported by pharmacological evidence (Level C) and theoretical risks.

The standard adult dosage for Ananas comosus bromelain extract typically ranges from 500 to 1000 mg daily. For digestive aid, it is taken with meals, whereas for anti-inflammatory purposes, it is generally taken on an empty stomach. Dosage often depends on the activity units (GDU or MCU) rather than just weight. Consumers should look for standardized extracts to ensure potency. Evidence for specific dosing is rated Level C.

Ananas comosus leaf extracts and concentrated bromelain supplements are considered unsafe during pregnancy. The proteolytic enzymes can stimulate uterine contractions, potentially leading to miscarriage or premature labor. While eating ripe pineapple fruit is generally safe in moderation, medicinal extracts contain much higher concentrations of bromelain. Due to the risk of uterine stimulation, pregnant women are advised to avoid these supplements (Evidence Level D/Traditional).

Common side effects associated with Ananas comosus bromelain are generally mild and gastrointestinal in nature. Users may experience nausea, vomiting, diarrhea, or abdominal cramping, particularly when taking high doses. Because bromelain is a protein-digesting enzyme, it may cause allergic reactions in individuals sensitive to pineapple, wheat, or grass pollen. Topical application can cause contact dermatitis. Evidence for these adverse effects is rated Level C.