Bilva

Names and identification

Language	Name
English	Bilva

How does it work?

• Antidiarrheal bidirectional motility modulation: Slows intestinal motility during diarrhea and eases it in constipation, attributed to balance of tannins and mucilage — a rare bidirectional property.
• Anti-inflammatory: Marmelosin (imperatorin) inhibits TNF-alpha mediated inflammatory markers and possesses antioxidant properties.
• Antidiabetic: Aegeline and marmelosin improve insulin signaling and reduce fasting glucose; oral extract increases body weight, pancreas weight, and insulin levels with improved beta-cell functional state.
• Coumarins (marmelosin, imperatorin, psoralen) are the most frequently reported bioactive class linked to antidiabetic, antioxidant, and antimicrobial activities.
• Neuroprotective: Network pharmacology identifies multi-target mechanisms against Alzheimer’s disease-related proteins.
• Antimicrobial and anti-biofilm: Fruit extract demonstrates activity against multi-drug-resistant Staphylococcus aureus biofilms.

What do recent clinical trials show?

• Sharma A, Gugulothu D, Virmani T and others 2025. Ethnopharmacological Profile, Phytochemistry and Therapeutic Potential of Aegle marmelos L. for the Treatment of Neurological Disorders. Journal of nutrition and metabolism. PMID 40535825 · doi:10.1155/jnme/2275526
  Comprehensive review highlighting neuroprotective potential of A. marmelos bioactive compounds including marmelosin, aegeline, and imperatorin, while emphasizing the need for more clinical trials to validate potency and safety in neurological applications.
• Chopra NK, Mehta V, Nagu P 2026. Unraveling the neuroprotective potential of Aegle marmelos in Alzheimer’s disease: a network pharmacology and molecular docking approach. In silico pharmacology. PMID 41613637 · doi:10.1007/s40203-026-00559-x
  Network pharmacology and molecular docking study identified multiple targets for neuroprotection in Alzheimer’s disease, suggesting multi-target therapeutic potential.

4 further claims previously listed here could not be traced to a published paper and have been removed. An absence here means we could not identify the source, not that no work exists.

Recent safety updates

• Insufficient reliable evidence to confirm safety when used as oral medicine; most safety data derive from traditional use rather than controlled trials.
• Large amounts may cause stomach upset, constipation, dehydration, dryness of mouth, stomach cramps, or nausea.
• Consuming large amounts of unripe fruit may irritate the intestines.
• Pregnancy contraindication: Traditionally used to stimulate uterine contractions; excessive use may pose risk of preterm labor. Avoid use during pregnancy and breastfeeding.
• May lower blood sugar — caution with concurrent diabetes medications due to additive hypoglycemic risk.
• Surgical precaution: Discontinue use at least 2 weeks before scheduled surgery due to blood sugar interference.
• Aegeline (alkaloid in bael) is monitored as a negative marker (toxic compound) in pharmacopoeia monographs.
• Bael fruits are prone to aflatoxin contamination; aflatoxin analysis is recommended before consumption as food or medicine.

What is it made of?

Key Active Markers

• Derived from constituent herbs (see individual herb profiles)
• Standardized on primary bioactive markers

Analytical Methods: HPLC fingerprinting, TLC (identity), LC-MS/MS (marker quantification)

Dosage forms and preparation

Dosage Forms: Churna (powder), Tablet, Capsule, Kashayam (decoction), Kwath Ghana (solid extract), Taila (oil), Bilva Avaleha, Panchamrita (compound preparation)

Standard Dosage: 3-6g fruit pulp powder twice daily; 500mg extract capsule; 50-100ml decoction; Bilva Avaleha 10-20g; unripe fruit preferred for diarrhea

Bioavailability: Marmelosin shows moderate oral bioavailability (30-40%). Coumarins are generally well absorbed from the GI tract. Mucilage from ripe fruit may slow absorption but provide sustained release. Skimmianine has good lipid solubility and crosses BBB. Psoralen-type furanocoumarins are photosensitizing—relevant for topical formulations. Decoction provides optimal extraction of antidiarrheal mucilaginous compounds.

Optimal Timing: Before meals with buttermilk for diarrhea; after meals for digestive support; Avaleha anytime as a tonic

Standardized Extract: Unripe fruit extract standardized to marmelosin NLT 1%; total coumarins NLT 3%. Leaf extract standardized to skimmianine NLT 0.3%. Ripe fruit pulp: total mucilage NLT 15%.

Shelf Life: 2 years (powder); 3 years (tablet/capsule); 1 year (Avaleha); 5 years (oil)

Storage: Cool, dry place away from light (furanocoumarins are photosensitive). Powder in airtight containers with desiccant. Avaleha in glass jars.

Marker Compounds: Marmelosin, Marmelide, Skimmianine, Aegeline, Marmeline, Psoralen, Imperatorin, Luvangetin, Umbelliferone

Extraction Methods

• Aqueous decoction of unripe fruit for antidiarrheal use
• Hydroalcoholic extraction (70:30) for coumarin-rich extract
• Ethanol extraction (95%) for alkaloid-rich fractions from leaves
• Cold pressing of ripe fruit for pulp extract
• Steam distillation of leaves for essential oil

Synergistic Combinations

• With Kutaja (Holarrhena) for chronic diarrhea and IBS
• With Musta for digestive disorders
• With Sunthi (dry ginger) for appetizer formulations
• With Dadima for malabsorption syndromes
• With Dhanyaka (coriander) for GI health