단백질을 많이 먹으면 신장에 해로울까? - 단백질과 신장의 관계🫀

안녕하세요.

운동을 시작한 분들이면 누구나 가장 중요하게 생각하는 단백질에 대해 얘기를 해볼까 합니다.

여러분들은 단백질을 많이 먹으면 간에 손상이 간다. 혹은 신장에 무리가 가서 좋지 않다. 라는 얘기를 많이 들어보셨나요?

 

정말로 단백질을 먹으면 신장이 망가질까요? 오늘의 주제는 단백질과 신장에 관한 상관관계입니다.

 

먼저 21세기 영양학이라는 책을 보면 단백질 과다 섭취의 부작용을 살펴보면 단백질을 과도하게 섭취 할 시 요소 배설이 증가하여 신장에 부담을 주며, 특히당뇨나 심장병 환자의 경우 조심하여야 한다고 나와 있습니다.

 

우선 신장의 기능을 알아보면 혈액의 노폐물을 제거하고 체액과 전해질 같은 것을 적절하게 조절해주는 부위라고 합니다.

쉽게 말해 소변을 볼 때 거를 건 거르고 흡수할 건 흡수하게 도와주는 인체의 혈액 필터 정도로 이해하면 될 것 같습니다.

 

그러므로 단백질의 경우에는 질소라는 것을 걸러야 되는데, 신장은 엄청나게 많은 양의 단백질을 섭취하게 되면 그로부터 나타나는 많은 양의 지소를 걸러 내다가 과부하다 손상된다는 것이 책에서 말하는 논점입니다.

 

하지만 단백질로부터 신장 손상이 유발되었다는 논문들은 모두 신장 질환이 있거나 당뇨 환자로부터 조사된 연구 결과였으며, 신장 기능에 문제가 없는 사람들에게는 신장에 해를 끼친다는 증거를 찾아보기 힘들었습니다.

 

심지어 ‘A High Protein Diet Has No Harmful Effects: A One-Year Crossover Study in Resistance-Trained Males’ 이 연구에서는 헬스 하는 건강한 남성들에게 6개월 동안 단백질을 체중 kg당 3g 이상으로 섭취 시켰지만 신장 기능에 해로운 영향이 나타나지 않았다고 합니다.

 

그리고 그 외에도 ‘Comparative Effects of Low-Carbohydrate High-Protein Versus Low-Fat Diets on the Kidney’ 이 논문을 보면 비만이지만 신장에 이상이 없는 사람들에게도, 고혈압이지만 신장에 이상이 없는 사람들에게도 고단백질 섭취로 인한 신장 기능에 해로운 영향을 미치지 않는 것으로 나타났습니다.

 

또한 ‘Effect of a High-Protein Diet on Kidney Function in Healthy Adults: Results From the OmniHeart Trial’ 이 논문에서는 신장에 잠재적인 부작용만으로 건강한데도 불구하고 단백질 섭취를 제한할 이유가 없다고 결론 지었습니다.

 

그래서 결론은 21세기 영양학에 나와있는 얘기와는 조금은 결이 다르게 신장에 큰 이상이 없는 사람이라면 고단백질 섭취가 큰 문제가 없다는 것입니다.

 

하지만 각자의 신장이 문제가 없다라는 것은 적절한 검사를 통해서만 알 수 있는 것이며, 제가 여러분에게 ‘당신의 신장은 건강하니 마음껏 드세요!’라고 말할수 는 없습니다.

 

이번 포스팅은 여기서 마치도록 하겠습니다.

내용이 마음에 드셨다면 구독 부탁드리겠습니다. 감사합니다.

 

 

 

 

Hello.
I'm going to talk about the protein that everyone who started exercising thinks is the most important.
Have you heard a lot of things like, "If you eat a lot of protein, your liver will be damaged." Or, "It's not good for your kidneys." Have you heard that a lot?

Will protein really ruin your kidneys? Today's topic is the correlation between protein and kidney.

First of all, if you look at the side effects of excessive protein intake, it says that excessive protein intake increases urea excretion, putting a burden on the kidneys, especially for diabetic and heart disease patients.

First of all, if you look at the kidney's function, it is said to be a part that removes blood waste and properly controls body fluids and electrolytes.
In other words, you can understand it as a human blood filter that helps you filter and absorb anything you want to absorb when urinating.

Therefore, in the case of proteins, nitrogen must be filtered out, and the point of the book is that when a huge amount of protein is consumed, the kidneys filter out a large amount of lipids that appear from it, and the overload is damaged.

However, all of the papers about kidney damage from proteins were the results of studies investigated by patients with kidney disease or diabetes, and it was difficult to find evidence of kidney damage in people who did not have kidney function problems.

Even A High Protein Diet Has No Harmful Effects: A One-Year Crossover Study in Resistance-Trained Males. In the study, healthy males who worked out for six months ate more than 3 g of protein per kg of body weight, but it showed no harmful effect on kidney function.

In addition, the paper, Comprehensive Effects of Low-Carbohydrate High-Protein Versus Low-Fat Diets on the Kidney, showed that high protein intake did not have a detrimental effect on kidney function in obese but non-renal abnormalities, nor in high blood pressure but non-renal abnormalities.

In addition, the paper concluded that there is no reason to limit protein intake despite being healthy with only potential side effects to the kidney.

So the bottom line is that high protein intake is not a big problem if you don't have a major kidney problem, which is a little different from what is said in 21st century nutrition.

But it's only through proper testing that your kidneys are fine, and I can't tell you, 'Your kidneys are healthy, eat as much as you want!'

I will end this posting here.
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