日本語
Supplement ingredient databaseChecked 2026-09-30

HMB (beta-hydroxy-beta-methylbutyrate) HMB(β-ヒドロキシ-β-メチル酪酸)

Foods with Function Claims ingredientClaim not authorised in the EU

Beta-hydroxy-beta-methylbutyric acid. In Foods with Function Claims, it is used in the form of HMB calcium.

See example products PR

In Japan: Foods with Function Claims notifications

34notifications (excluding withdrawn)
30with this ingredient alone
21as tablets, capsules, etc.
2019first notification

Functions claimed (counted from notifications with this ingredient alone)

FunctionNotifications
Muscles30
Walking ability and exercise20

Examples of notified claims (our translation)

This product contains 3-hydroxy-3-methylbutyrate calcium hydrate (HMB calcium). HMB calcium has been reported to have the function of helping maintain the muscle mass, muscle strength, and muscle endurance needed for independent daily living, and the function of helping maintain walking ability.
プロテインR65+(アールロクジュウゴプラス) ココア味(株式会社ユーキャン) / notification No. J1542 / notified 2025-03-28 / processed food (other)
This product contains calcium bis-3-hydroxy-3-methylbutyrate monohydrate (HMB calcium). HMB calcium has been reported to have the function of acting on muscle maintenance and, when combined with light exercise (moderate exercise such as walking or climbing stairs), helping maintain and prevent the decline of the muscle strength needed for daily life (strength needed for walking, standing, housework, and similar activities).
筋力サポート習慣(大正製薬株式会社) / notification No. I1020 / notified 2023-12-14 / processed food (tablets, capsules, etc.)

Cautions written in the notifications (most common)

  • “Be careful not to take too much calcium.” (17 notifications)
  • “This product contains calcium, so be careful not to take too much calcium.” (5 notifications)

Under Foods with Function Claims, the company notifies the Consumer Affairs Agency of the scientific evidence on its own responsibility; the government does not review or approve it. You can look up each product's notification by the number on the package in the Consumer Affairs Agency's database (Japanese).

In the EU: the register of health claims

Claim not authorised in the EU

  • The "muscle mass," "muscle strength," "endurance," and "recovery after exercise" claims were not authorised because EFSA found them not substantiated (2011 opinion).

In the EU, only health claims whose evidence has been assessed by the European Food Safety Authority (EFSA) and authorised by the European Commission may be used on food. “Not authorised” means the evidence for that claim was not established under EU standards — not that the ingredient is dangerous.

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These are Japanese online shops (affiliate links).

Example of a product notified with this ingredient

筋力サポート習慣 (大正製薬株式会社)

Food with Function Claims, notification No. I1020. Chosen from products sold on Rakuten whose names match a current notification to the Consumer Affairs Agency, picking one with many reviews.

See on Rakuten (taisho-directshop)See on Amazon.co.jp

This database does not guarantee any product's effect. For Foods with Function Claims, check the notification number on the package; for Foods with Nutrient Function Claims, check the amount per daily serving.

Compare “HMB サプリ” products on RakutenCompare “HMB サプリ” products on Amazon.co.jp
This page lists information published by governments and public bodies. It does not guarantee any effect or judge whether something is good or bad. If you are being treated for an illness, taking medicine, pregnant or breastfeeding, talk to a doctor or pharmacist before use.

Other ingredients in the same categories

This page is a translation of our Japanese page; if they differ, the Japanese page is the reference.

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