The Claim
In 12-month-old male Wistar rats, six months of 15% and 35% caloric restriction is associated with increased plasma testosterone levels (1.75-2.10 ng/mL) compared to control rats (0.57 ng/mL), and 12-month caloric restriction maintains higher testosterone levels (1.17-1.47 ng/mL) versus controls (0.17 ng/mL).
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.
When rats eat less food for several months, their testosterone levels go up compared to rats that eat normally.
See the scientific wording
Six months of 15% and 35% caloric restriction is associated with increased plasma testosterone levels (1.75-2.10 ng/mL) in 12-month-old male Wistar rats compared to control rats (0.57 ng/mL), while 12-month caloric restriction maintains higher levels (1.17-1.47 ng/mL) versus controls (0.17 ng/mL).
What the research says
1 studyStudy: Effect of Chronic Moderate Caloric Restriction on the Reproductive Function in Aged Male Wistar Rats
The study fed rats less food and found they had higher testosterone levels than normal rats, which matches exactly what the claim says.
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.