Limit sodium content
Most elders have hypertension – high blood pressure. One of the most important things caregivers can do to help reduce a parent's hypertension is to prepare foods with low sodium. Most people are surprised to know that table salt accounts for only a small percent of sodium content in food. Avoid giving your parent frozen, processed or restaurant food, as these are extremely high in sodium. The foods with the lowest sodium content are fruits and vegetables, so try and incorporate them as much as possible in their diet.
Hydrate
As people age, they do not get thirsty very often, even though their bodies still need the same amount of liquids. If you notice that your parent is not drinking liquids very often, make sure that you provide them with it. If they do not feel thirsty, chances are they may not think about drinking a glass of water.
If you are concerned that your parent may not be properly hydrated, check his or her urine. Urine is the surest sign of hydration or lack of it. If the urine is clear and light, then your parent is most likely properly hydrated. If, however, urine is dark and/or cloudy, your parent will need to start drinking more liquids.