There are more probiotics that promote absorption, mainly including Bacillus subtilis, Bifidobacterium bifidum and Lactobacillus casei. Probiotics can inhibit certain pathogenic bacteria in the intestinal tract, regulate the balance of intestinal flora, and promote the digestion and absorption of nutrients. 1. Bacillus subtilis: belongs to a kind of Bacillus subtilis, with more functions, it can quickly consume the free oxygen in the intestinal tract, keep the intestinal tract in low oxygen state, and also promote the growth and development of human immune organs. 2. Bifidobacterium bifidum: It can be used to treat acute and chronic diarrhea, and also can relieve all kinds of intestinal inflammation and intestinal flora imbalance caused by gastrointestinal dysfunction, such as chronic diarrhea, constipation and so on. 3. Lactobacillus casei: as polymorphic bacillus, it can promote the balance of microflora and enzymes, so as to stimulate the role of specific and non-specific immune mechanisms, and fundamentally alleviate acute diarrhea and constipation caused by gastrointestinal flora. All of the above probiotics can be used to regulate the intestinal tract and promote the digestion and absorption of nutrients. You should seek medical advice before using the medication, and take different medications for different conditions and choose them with your doctor’s advice.