The Claim
In aged male mice, a 12-week diet supplemented with glycine and N-acetyl cysteine (GlyNAC) is associated with a 12% reduction in left atrial volume expansion compared to a 20% increase in control mice, along with improved exercise performance.
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.
In older male mice, a 12-week diet with glycine and N-acetyl cysteine resulted in a 12% smaller increase in left atrial volume compared to a 20% increase in mice on a normal diet, and these mice also showed better exercise performance.
See the scientific wording
In aged male mice, a 12-week diet supplemented with glycine and N-acetyl cysteine (GlyNAC) is associated with a 12% reduction in left atrial volume expansion compared to a 20% increase in controls, along with improved exercise performance, suggesting a sex-specific benefit on cardiac remodeling in aging males.
Glycine and N-acetyl cysteine boost the body's natural antioxidant, which cleans up harmful molecules in heart cells. This allows the heart to burn fat more efficiently for energy, improves how well its energy factories work, and stops excess scar tissue from forming in the heart wall. As a result, the heart chamber stays more flexible and doesn't swell as much with age.
What the research says
1 studyIn older male mice, adding glycine and NAC to their diet helped prevent their hearts from swelling as much and made them better at exercising—but the same diet didn’t help female mice at all. The study proves this effect happened specifically in males.
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.