药物的溶解性，在胃肠道中的稳定性，膜的通透性和全身代谢是影响口服药物吸收的主要因素。
The solubility, stability in gastrointestinal tract, membrane permeability and presystemic metabolism of drugs were the major factors on oral drug absorption.
肠道细菌可以影响脂肪的吸收过程，改变肥胖的可能性，改变胆固醇的水平，影响糖尿病发生几率。
Gut bacteria can affect how fats are processed, change the likelihood of obesity, alter cholesterol levels and affect chances of developing diabetes.
另外，小宝宝胃肠道系统的不完善，也会影响吸收。
In addition, the infant gastrointestinal tract of the imperfect system, but will also affect absorption.
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