Salmon
Salmon has long been considered the "king" of healthy fish. In addition to being rich in easily digestible protein, salmon also contains high levels of omega-3 EPA and DHA, which help reduce systemic inflammation, a factor that contributes to kidney tissue damage.
According to Dr. Joseph Vassalotti, a kidney expert at the National kidney Foundation (USA), a diet rich in omega-3 can help improve blood pressure and reduce urinary protein - both of which are signs of kidney damage.
Salmon is one of the richest and most easily absorbed natural sources of omega-3.
Salmon also contains vitamin D and selenium, which help protect kidney tissue from oxidative stress, while supporting strong bones, an important factor for people with kidney failure.
Autumn fish
Mackerel, especially Atlantic mackerel, is also a rich source of good fats and protein. Not only does mackerel help control cholesterol, it also helps maintain stable blood pressure - which is necessary for kidney health.
A study published in the European Journal of Clinical Nutrition in 2023 showed that adding mackerel to the diet 2-3 times a week can improve renal insufficiency (GFR) function in people at risk of kidney failure due to diabetes or high blood pressure.
However, to optimize benefits and avoid mercury accumulation, you should prioritize mackerel caught naturally and avoid using too many mackerel, the type with higher heavy metal content.
Sardines
Sardines, although small, are a real " nutritional warehouse". Each serving of sardines provides a large amount of calcium, vitamin B12, vitamin D, along with omega-3, all of which are beneficial for the kidney blood vessels and the ability of the kidney to filter.
Sardines are an ideal choice for people at risk of kidney disease because they are cheap, easy to find and rich in nutrients that protect small blood vessels in the kidneys.
Another plus is that sardines can eat the bones, helping to supplement calcium - a mineral that is often deficient in people with chronic kidney disease in the early stages.
For the above 3 types of fish, it is best to grill, steam or pan with less oil. Avoid deep-fried or use a lot of salty spices.
Control salt: People with kidney disease should eat white fish instead of canned fish with added salt or sauce.
Eat regularly: 2-3 fatty fish meals per week are enough to promote the protective effect of the heart and kidneys.
