Patient-Friendly Explanation

Sirtuins are enzymes that become more active when energy is in short supply, such as during steady weight loss. They help cells repair themselves and use fat for fuel more efficiently. This is one of the ways that eating a little less and moving more improves health beyond the number on the scale.

Clinical Definition

Sirtuins are NAD-dependent deacylases. SIRT1 deacetylates PGC-1alpha and FOXO transcription factors, increasing mitochondrial biogenesis, fatty-acid oxidation and insulin sensitivity, and it also influences hypothalamic appetite signalling. NAD availability falls with age and with excess adiposity, while energy restriction and exercise raise sirtuin activity. No sirtuin activator is licensed for weight loss.

Why It Matters

Sirtuin biology explains why the quality of a weight-loss plan, and not just total calories, changes metabolic outcomes. NuLifeCare Singapore builds those principles into supervised care rather than relying on supplements that claim to activate them.