Garlic. Garlic is a great spice option for those with CKD. It can enhance the flavor of other meals, reducing the need for additional salt. Garlic also has a number of health advantages. For example, research suggests that adding garlic to your diet may help reduce blood pressure and improve cholesterol levels. Eating garlic can cause symptoms such as burning feeling in the stomach and diarrhea. However, these effects are not serious and should pass quickly. Ginger. Like garlic, ginger has many health benefits. Research shows that people who eat more ginger have lower rates of cancer, diabetes, and heart disease. Ginger can be used in cooking or taken in supplement form. The most common side effect from eating ginger is its spicy taste. This can be avoided by using powdered ginger or buying Asian varieties of ginger that are already peeled and chopped up. Onions. Similar to garlic and ginger, onions have many health benefits. They are good for your heart because they contain antioxidants and vitamins that protect against cardiovascular disease. Eating onions can cause tears to come out of your eyes, sweat to appear on your skin, and urine to smell like pepper. These are all normal reactions to eating onions. People who suffer from asthma should avoid eating onions because their symptoms can become worse due to the odor that they produce. Parsley.