中医"元气"概念传承数千年，被视为生命活动的根本动力，但其物质基础始终未被现代科学明确阐明。本文提出假说：肠道菌群产生的氢气（H₂）与短链脂肪酸（SCFA，主要是丁酸、丙酸、乙酸）是"元气"的现代生物学对应物。这一假说将传统中医理论与现代微生态学打通，形成"细嚼慢咽→菌群植入→产氢产酸→化生元气"的完整科学逻辑链。The TCM concept of "Yuanqi" (元气) has been passed down for millennia as the fundamental driving force of life activities, yet its material basis has never been clearly elucidated by modern science. This article proposes a hypothesis: hydrogen gas (H₂) and short-chain fatty acids (SCFA—primarily butyrate, propionate, and acetate) produced by gut microbiota are the modern biological counterparts of "Qi." This hypothesis bridges traditional Chinese medicine theory with modern microbiology, forming a complete scientific logic chain: thorough chewing → microbiota implantation → H₂/SCFA production → Qi generation.
在中医理论中，"元气"又称"原气"，是人体最根本、最重要的气，来源于先天之精和后天之精的结合。《黄帝内经》将元气描述为生命的原动力，推动五脏六腑的功能运行。元气充盈则身体健康，元气亏虚则百病丛生。In TCM theory, "Yuanqi" (元气), also called "Yuan Qi" (原气), is the most fundamental and important Qi in the human body, derived from the combination of congenital essence and acquired essence. The "Huangdi Neijing" describes Yuanqi as the prime mover of life, driving the functional operations of all organs. Abundant Yuanqi means health; deficient Yuanqi invites disease.
2025年，Welsh等人在Nature Microbiology发表的里程碑论文系统揭示了肠道菌群的产氢酶（hydrogenases）多样性。研究发现，拟杆菌门（Bacteroidetes）和厚壁菌门（Firmicutes）是肠道产氢的主要菌群，通过碳水化合物发酵产生H₂。这些氢气不仅作为代谢副产物，更可能有助于维持肠道氧化还原平衡、调节肠道蠕动、影响全身能量代谢。In 2025, Welsh et al. published a landmark paper in Nature Microbiology systematically revealing the diversity of hydrogenases in gut microbiota. The study found that Bacteroidetes and Firmicutes are the primary H₂-producing phyla in the gut, generating hydrogen through carbohydrate fermentation. This H₂ is not merely a metabolic byproduct—it may help with maintaining gut redox balance, regulating intestinal motility, and influencing systemic energy metabolism.
肠道菌群发酵膳食纤维产生的短链脂肪酸（SCFA）——丁酸、丙酸、乙酸——是人体重要的能量来源和信号分子。丁酸可能有助于修复肠道上皮屏障、抑制炎症；丙酸可能有助于调节糖脂代谢；乙酸可能有助于中枢神经功能。这恰好对应了中医"元气化生"的理论——从后天水谷精微中转化出维持生命的动力。SCFA produced by gut microbiota fermenting dietary fiber—butyrate, propionate, and acetate—are crucial energy sources and signaling molecules. Butyrate may help with repairing the intestinal epithelial barrier and suppressing inflammation; propionate may help with regulating glucose and lipid metabolism; acetate may help with central nervous system function. This precisely corresponds to the TCM theory of "Qi transformation"—converting acquired nutrients into the life-sustaining force.
我们提出如下逻辑链：We propose the following logic chain:
2026年山东第一医科大学团队发表的研究提供了直接证据：富氢水可以通过"肠道菌群-丙酸-巨噬细胞轴"延缓动脉粥样硬化斑块进展。研究发现，富氢水调节肠道菌群组成，提高丙酸（SCFA之一）水平，进而抑制促炎的M1型巨噬细胞。粪菌移植实验证实，这种抗动脉粥样硬化的表型可以通过肠道菌群传递给其他个体。In 2026, a team from Shandong First Medical University published research providing direct evidence: hydrogen-rich water can delay atherosclerotic plaque progression via the "gut microbiota-propionate-macrophage axis." The study found that hydrogen-rich water modulates gut microbiota composition, increases propionate (an SCFA) levels, and subsequently suppresses pro-inflammatory M1 macrophages. Fecal microbiota transplantation experiments confirmed that this anti-atherosclerotic phenotype can be transmitted to other individuals through gut microbiota.
这恰好验证了我们的假说核心：菌群产氢→SCFA升高→全身性健康效应。此外，2026年Nature发表的34,000人宏基因组研究否定了"单菌株神药"思维，倡导生态视角——这与中医"整体观"和我们的"菌群生态土壤"理念高度一致。首部《菌药针协同整合疗法专家共识》更明确提出"中药为土壤调理剂、菌液为高活性种子、中医外治为气候调节器"的三位一体模型，与我们的逻辑链完全呼应。This precisely validates the core of our hypothesis: microbiota hydrogen production → elevated SCFA → systemic health effects. Additionally, a 2026 Nature study analyzing 34,000 metagenomes rejected the "magic bug" approach in favor of an ecological perspective—highly consistent with TCM holism and our "microbiome ecological soil" concept. The first Expert Consensus on Fungus-Drug-Acupuncture Synergistic Integrative Therapy explicitly proposed a tripartite model: "Chinese medicine as soil conditioner, probiotics as high-activity seeds, external therapy as climate regulator," perfectly echoing our logic chain.