Soy protein instead of animal protein and kidney function
What it found
Swapping soy protein for animal protein usually lowered excess kidney filtering in people with diabetes.
In animals, the swap slowed the development of kidney disease.
What they found
Studies in people
Lower protein intake
Eating less protein helped preserve kidney function in people with early diabetic kidney disease.
Less kidney overwork
Replacing animal protein with soy protein usually reduced excess filtering in the kidneys of people with diabetes. It may also have lowered the amount of albumin leaking into their urine.
Animal and lab studies
Kidney disease in animals
In animals, using soy protein instead of animal protein slowed down the development of kidney disease.
Other findings
Active parts of soy
Specific peptides, amino acids, and isoflavones found in soy protein might be responsible for these kidney benefits. Data on how these individual parts affect kidneys in diabetes are limited.
What the authors conclude
- They suggest that swapping soy protein for animal protein causes less strain on the kidneys and may protect against diabetic kidney disease.
- They note that more studies are needed to figure out which parts of soy protein provide these benefits in people with diabetes.
How it was done
Changing the type or amount of protein eaten plays a big part in preventing and managing kidney problems. The authors wanted to test whether replacing animal protein with soy protein protects kidneys in people with diabetes.
The authors looked at clinical observations and existing research on soy protein and kidney health. They studied both animals and people with early diabetic kidney disease. No specific number of participants or study length is given.
What it can’t tell you
- We summarised it from the abstract only.
- This work combines different types of evidence, so it cannot prove that soy protein alone caused the kidney improvements seen in people.
- Animal results showing slower kidney disease cannot directly show what happens in people eating soy protein.
Who paid
- Authors work at
- University of Kentucky, USA
The paper
- Title
- Beneficial effects of soy protein consumption for renal function
- Type
- ReviewThe authors read earlier studies and describe what they found. It isn’t a new study.
- Evidence
- Studies in people · animals · lab
- Summarised from
- Abstract only
- Cite
- Anderson JW (2008). Beneficial effects of soy protein consumption for renal function. Asia Pacific journal of clinical nutrition.PubMed 18296369
Summary written 30 Sep 2026. Check it against the paper before it changes what you eat. How we summarise papers · Report an error