Keeping the kidneys healthy is crucial for good health. These organs play a crucial role in filtering waste, regulating fluids, and balancing electrolytes. Kidney diseases are on the rise, and lifestyle factors including diet have a pivotal role. While certain foods can harm your kidneys, some others can boost its health, and also keep the diseases at bay. Here are five superfoods, backed by science, that improve optimal kidney health.Blueberries

Blueberries are packed with antioxidants, such as anthocyanins, which combat oxidative stress that can damage kidney cells. Studies have consistently shown that blueberry consumption can reduce inflammation markers in kidney patients. The proanthocyanins, flavanols and phenolic acid also benefit health. A 2014 study found that blueberry protects against MetS-associated chronic kidney disease by decreasing inflammation. As blueberries are also low in potassium and phosphorus content it is very kidney-friendly.Salmon

Yes, fatty fish are good for the kidneys. Fatty fish like salmon are excellent sources of omega-3 fatty acids. They can reduce inflammation and protect against kidney damage. Studies have shown that regular intake of omega-3s lowered proteinuria (excess protein in urine) in patients with kidney disease. Salmon is also a good source of high-quality protein, and is also beneficial for the heart, brain, eyes, inflammation, and your overall health. If you can get wild-caught salmon, its even better, because of lower contaminant levels.Kale

Eat your greens. Yes, your mum is right. Leady greens not only protect your heart but also the kidneys. Kales are rich in vitamins A, C, and K. This leady green is linked with reducing blood pressure. Its fiber content helps to eliminate toxins from the body. You can incorporate kale in your daily diet. You can blend them into salads or smoothies. However, it may not be suitable for people with kidney diseases.
Red bell peppers

Good news for those who enjoy bell peppers. Red bell peppers are great for your kidney health. They are low in potassium and rich in vitamins C and A, and fiber. They also contain vitamin B6, and folic acid. You can eat them raw with dip as a snack, roasted, sauteed, and add to salads or sandwich.Cauliflower

Cauliflower is a great addition to improve kidney health. They are low in potassium, and high in fiber. This vegetable will boost kidney health by improving digestion and reducing toxin buildup. Eating this vegetable can reduce blood pressure and also enhance heart health. Cruciferous vegetables like cauliflower may lower the risk of kidney stones due to their sulfur compounds.