The Claim
Low-carbohydrate diets have a potential renal acid load (PRAL) of 19.0 mEq/day, which is more than four times higher than the PRAL of standard hospital diets (4.5 mEq/day), resulting in a significantly greater dietary acid burden that impairs uric acid excretion and worsens hyperuricemia.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Low-carbohydrate diets produce a much higher acid load in the kidneys compared to standard hospital diets, leading to reduced uric acid excretion and higher levels of uric acid in the blood.
See the scientific wording
Low-carbohydrate diets have a potential renal acid load (PRAL) of 19.0 mEq/day, more than four times higher than standard hospital diets (4.5 mEq/day), indicating a significantly greater dietary acid burden that may impair uric acid excretion and worsen hyperuricemia.
When the diet produces a lot of acid, the kidneys work harder to remove that acid by using special channels to push acid out into the urine. These same channels are also used to remove uric acid. When the acid load is high, the channels get overloaded and uric acid cannot be removed as well, so it builds up in the blood.
What the research says
1 studyStudy: Purine Content and Renal Acid Load Evaluation in Healthy Japanese Diets.
This study found that low-carb diets put nearly five times more acid stress on the kidneys than regular hospital meals, which may make it harder for the body to get rid of uric acid — potentially making gout or high uric acid worse.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.