What is the recommended dosage for Psyllium Husk?

General: 5-10 g/day (with adequate water); Ibs Support: 5-10 g/day (start low, titrate up over 1-2 weeks); Constipation: 10-20 g/day in divided doses with at least 240 mL water per dose

What are the side effects of Psyllium Husk?

Potential side effects include: Gas and bloating (common initially; start with low dose and titrate up), Esophageal/bowel obstruction if taken without adequate water (CRITICAL: always take with full glass of water), Abdominal cramping at high initial doses, May reduce appetite (feeling of fullness).

What is psyllium husk and how does it work for gut health?

Psyllium husk is a soluble fiber derived from the seeds of Plantago ovata. It absorbs water in the gut to form a viscous gel that softens stool, adds bulk, and promotes regular bowel movements. Unlike many other fibers, psyllium has the dual ability to help both constipation (by adding bulk and moisture) and diarrhea (by absorbing excess water). It is the active ingredient in products like Metamucil.

What is the recommended dosage of psyllium husk?

The typical dosage is 5-10 g of psyllium per day (approximately 1-2 tablespoons), taken with at least 8 ounces of water per serving. It is important to start with a lower dose and increase gradually to minimize gas and bloating. Psyllium should always be taken with adequate fluids to prevent intestinal obstruction. Benefits for regularity are usually seen within 24-72 hours.

Are there side effects or interactions with psyllium husk?

Psyllium may cause gas, bloating, and cramping, especially when starting or increasing the dose too quickly. Taking psyllium without sufficient water can lead to choking or intestinal obstruction. It may reduce the absorption of certain medications (lithium, digoxin, carbamazepine, and others), so medications should be taken 1-2 hours before or after psyllium. Rare allergic reactions have been reported.

Psyllium Husk
Psyllium Husk

fiber

別名: Ispaghula Husk, Metamucil, Plantago ovata, Fybogel

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About

Psyllium husk is a soluble, gel-forming fiber derived from the seed husks of Plantago ovata. It is one of the most extensively studied fibers for digestive health, recommended by both the AGA and ACG guidelines for chronic constipation and IBS. Research suggests psyllium may help normalize stool consistency by absorbing water, increase fecal bulk weight by 3-5 times, and support regular bowel movements.

How It Works

Soluble gel-forming fiber that absorbs water to normalize stool consistency (softens hard stools, firms loose stools); increases fecal bulk weight by 3-5x; fermented to SCFAs by colonic bacteria; slows colonic transit in diarrhea and accelerates in constipation (bidirectional effect).

Evidence For Conditions

症状・状態	グレード	研究数	参加者数
Chronic Constipation	A	18	1400	詳細を見る →
Irritable Bowel Syndrome (IBS)	B	8	900	詳細を見る →

Side Effects

Gas and bloating (common initially; start with low dose and titrate up)
Esophageal/bowel obstruction if taken without adequate water (CRITICAL: always take with full glass of water)
Abdominal cramping at high initial doses
May reduce appetite (feeling of fullness)

Drug & Supplement Interactions

May reduce absorption of medications if taken simultaneously (space 1-2 hours)
Lithium (reduced absorption)
Carbamazepine (reduced absorption)
Diabetes medications (may enhance blood sugar lowering; monitor glucose)

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Related Ingredients

Partially Hydrolyzed Guar Gum (PHGG)

基本情報

用量: General: 5-10 g/day (with adequate water); Ibs_Support: 5-10 g/day (start low, titrate up over 1-2 weeks); Constipation: 10-20 g/day in divided doses with at least 240 mL water per dose
剤形: powder capsule wafer husk (whole)
天然の供給源: Plantago ovata plant husks (grown primarily in India), Available as processed supplement
上限量: Well-tolerated up to 30 g/day with adequate fluid intake
推奨摂取タイミング: With meals and a full glass of water (240 mL minimum); space 1-2 hours from medications

エビデンスの要約

Chronic Constipation A

Irritable Bowel Syndrome (IBS) B

FDAに関する免責事項: これらの記述は米国食品医薬品局（FDA）による評価を受けていません。本ウェブサイトの製品および情報は、疾病の診断、治療、治癒、または予防を目的としたものではありません。表示されているエビデンスグレードは、公開された査読済み研究の分析に基づいており、医療上の助言を構成するものではありません。サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。