Membrane Potentials / Hyperkalemia Effects of changing K + concentration altering either the intracellular or extracellular K + concentration has substantial effects on the resting membrane potential, and therefore on the ability of neurons and muscle cells to reach action potential threshold
The most common side effects of fish oil supplements are bloating, belching, gas and diarrhea. Taking a fish oil supplement also can cause loose stools, nosebleeds and rashes, according to Medline Plus. The supplement also can leave a fishy smell on your breath. The UMMC also notes that taking a time-release fish oil supplement may cut back on intestinal symptoms.
Some people find that mannitol, sorbitol, and other artificial sweeteners have a laxative effect. Check labels carefully as artificial sweeteners are found in sugarless candy and gum, diet beverages, and sugar substitutes. Spicy foods. Hot and spicy foods can irritate the stomach lining and cause loose stools.