Phaseolus vulgaris vs Amorphophallus

Side-by-side comparison of medicinal herbs

Herb

Phaseolus vulgaris

Metabolic

Amorphophallus konjac

Metabolic

Phaseolus vulgaris

✅ Generally safe in pregnancy

✅ Generally safe while nursing

Amorphophallus

❌ Not recommended in pregnancy

❌ Not recommended while nursing

Description

Most widely cultivated bean; pod extract (Phaseolamin) inhibits starch digestion for weight management.

East and Southeast Asian corm with glucomannan fiber used for weight management and blood sugar.

Active Compounds

phaseolamin, phaseolin, lectins, polyphenols, protein, fiber

glucomannan, konjac mannan, starch, alkaloids, betaine

Traditional Uses

diabetes, weight management, food source, constipation, digestive health

Japanese konyaku food, Chinese digestive tonic, Southeast Asian traditional food

Modern Uses

anti-diabetic, weight management (starch blocker), nutritive food, anti-obesity

weight management, blood sugar management, cholesterol reduction, constipation

Adult Dosage

As food; white kidney bean extract 445-1500mg before carb meals

1-4g glucomannan with full glass water before meals

Contraindications

raw bean lectins toxic (must cook), legume allergy

esophageal obstruction, swallowing difficulties, bowel obstructions

Side Effects

bloating, GI upset, lectin toxicity if raw

GI bloating, esophageal blockage if insufficient water

Drug Interactions

0 known interactions

Reviewed by: HerbAlly Editorial Team, Medical herbalists and healthcare professionals

Sources: WHO Monographs · NCCIH · PubMed · Commission E