最終更新: 2026-09-04
ユダヤ教で「筋肉増強のためのステロイド」は罪ですか？
簡単な答え
はい、ユダヤ教では「筋肉増強のためのステロイド」は罪とされています。
IsItASin · 最終更新: 2026-09-04
はい、ユダヤ教では「筋肉増強のためのステロイド」は罪とされています。 Bava Kamma 91b — One who wounds himself is not liable in court, but it is forbidden.
ユダヤ教が「筋肉増強のためのステロイド」について教えること
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ユダヤ教が「筋肉増強のためのステロイド」について教えること
詳細な回答（英語） — 以下の詳細な分析は英語で提供されています。 英語の完全版を読む →
Judaism's ruling is anchored in the self-injury principle the Talmud states plainly: one who wounds himself, though the court cannot punish him, violates a prohibition (chovel b'atzmo, Bava Kamma 91b) — and poskim apply it to any knowing, non-therapeutic damage to healthy organs and systems. Steroid harms land squarely: the cardiac literature, endocrine suppression, and psychological effects are the wound, slow-motion. The body-guard duty (Deuteronomy 4:9; Maimonides' De'ot 4 opening) frames the positive: the body is service infrastructure, and maintenance is religious. Doping in sport adds the civil-law layer — banned substances violate dina d'malkhuta dina (Nedarim 28a) — plus the geneivat da'at dimension: competitors and organizers are misled about what they are witnessing. The therapeutic exception is halakhically clean: prescribed hormone treatment for deficiency is refu'ah, and Jewish law not only permits but prioritizes healing ('and he shall surely heal,' Exodus 21:19). Contemporary rabbis writing for the gym generation add the wisdom note: the Mussar teachers warned about ga'avah (pride) clothing itself in any achievement — and a physique that requires deception and damage is a costly garment.
トーラー／タルムード参考文献
- Bava Kamma 91b — One who wounds himself is not liable in court, but it is forbidden.
- Deuteronomy 4:9 — 'Take care... keep your soul diligently.'
- Talmud, Nedarim 28a — The law of the kingdom is the law; banned substances violate civil law.
あなたがすべきこと
以下の詳細な分析は英語で提供されています。
- Get bloodwork and a doctor's supervision for any hormone decision — deficiency is treatable; guesswork is harm.
- If you compete, race clean: your word to the sport is a religious matter in every tradition here.
- Jewish: Chovel b'atzmo (Bava Kamma 91b) — never wound healthy organs; healing is permitted, damage is not.
- All: If body image is driving you, talk to someone — the drive is the issue worth treating.
Repentance: Teshuvah
The Talmud teaches that teshuvah was created before the world itself — Hashem believed in your return before you were born. The gates of return are open now.
Begin Your Teshuvah — The Gates Are Open →よくある質問
以下の詳細な分析は英語で提供されています。
Is TRT prescribed by a doctor a sin?
No — diagnosed deficiency treated under supervision is treatment in every tradition here, not a sin.
No — diagnosed deficiency treated under supervision is treatment in every tradition here, not a sin. The moral questions attach to non-medical dosing for enhancement and to acquiring drugs outside medical channels.
What about steroids in untested competitions where everyone uses?
The health prohibitions stand independent of the rulebook, and 'everyone does it' never enters the traditions' logic.
The health prohibitions stand independent of the rulebook, and 'everyone does it' never enters the traditions' logic. If the rules ban them, deception adds to harm. If the rules permit, harm still governs — the self-harm prohibitions don't care about the sanctioning body.
Why is this different from creatine or protein?
Risk profile is the difference: food-derived supplements with strong safety records don't trigger the harm prohibitions; hormone manipulation with documented organ and psychiatric risks does.
Risk profile is the difference: food-derived supplements with strong safety records don't trigger the harm prohibitions; hormone manipulation with documented organ and psychiatric risks does. The traditions judge substances by harm and deception, not by a list — dosages matter, mechanisms matter.
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