Keflex side effects: Keflex is a cephalosporin antibiotic. This antibiotic can commonly cause gastrointestinal side effects like diarrhea, nausea, vomiting and sometimes, headaches. Serious side effects include anaphylactic reactions, decrease in blood cells and liver disease. ...Read more.
1 Vitamin E is an antioxidant for cardiovascular health, a blood thinner, improves circulation and is also an anti-inflammatory. 2  CoQ10 is an important nutrient for the circulation, especially if you suffer from high cholesterol or high blood pressure.
Essential B vitamins for the digestive system include: 1  B1. Also known as thiamine, B1 helps your body change the carbohydrates in your diet into energy for your cells and regulate appetite.  B3. Also known as niacin, this vitamin is important for many digestive tract functions, including the breakdown of carbohydrates, fats, and alcohol.