Researchers observed human and animal models and found that after drinking water with baking soda for two weeks, the population of  waste-consuming immune cells called macrophages shifted from mostly those that promote inflammation to those that reduce it. The shift from inflammatory to an anti-inflammatory profile was observed throughout the body, including the kidneys, the spleen, and in the peripheral blood. The article states that the dosage people take daily for alkalinizing their body's pH, or for use as an antacid, is one-half to 1 teaspoon of baking soda completely dissolved in at least 4 ounces of water. Health advocates recommend using aluminum-free baking soda such as Bob's Red Mill baking soda.