INSULIN SENSITIVITY

This early-stage study tests whether transplanting gut bacteria from young, physically active donors into older adults (ages 65-84) can improve muscle strength, thinking skills, and metabolism. The goal is to see if this approach can help seniors stay resilient and independent. T…

This study looks at how fructose in meals influences fat production and blood sugar levels in people with prediabetes or insulin resistance. Researchers will give participants special labeled fructose or pyruvate in liquid meals to track these processes. The goal is to better und…

This study looks at how insulin in the brain influences the immune system when you exercise. Twenty healthy adults will ride a stationary bike after receiving either an insulin nasal spray or a placebo spray. Researchers will measure immune cell activity and physical performance …

This study looks at whether two common artificial sweeteners, saccharin and acesulfame potassium, affect blood sugar control in older adults with prediabetes. Researchers will monitor 30 participants over 8 weeks using continuous glucose monitors and oral glucose tolerance tests.…