Dr. Jacob's Alkaline Powder 300 gDr. Jacob's base powder is based on the model of nature. Fruits and vegetables provide the valuable organic minerals potassium, calcium and magnesium, but only a small amount of sodium. Dr. Jacob's base powder contains organic minerals based on citrate, calcium and magnesium in a natural ratio of about 3: 2, a lot of potassium and especially little sodium. One serving (4. 5 g) contains about as much potassium as four apples (600 g) or a bowl of