Supporting DNA repair and activating sirtuins—the so-called “longevity genes”—is at the forefront of modern anti-aging research. While NAD+ often takes center stage, several other compounds have shown similar or synergistic effects in studies. Here’s a breakdown of the most important players:
1. Sirtuin Activators (STACs)
Sirtuin-activating compounds “switch on” sirtuins, allowing them to perform their protective functions.
- Resveratrol – Perhaps the most well-known sirtuin activator, found in grape skins. It works synergistically with NAD+: while NAD+ provides the “fuel” for sirtuins, resveratrol acts as the “gas pedal.”
- Pterostilbene – Chemically related to resveratrol (found in blueberries), it’s considered more potent because the body absorbs it better and it remains in the bloodstream longer.
- Fisetin – A flavonoid present in strawberries, fisetin not only activates sirtuins but also acts as a senolytic, helping the body eliminate old, dysfunctional “zombie cells.”
2. Nutrients for DNA Repair
For enzymes like PARPs to repair DNA effectively, certain cofactors are essential:
- Zinc – Vital for the structure of “zinc finger proteins” that detect DNA damage and initiate repair. Deficiency is linked to increased DNA breaks.
- Magnesium – Involved in almost every step of DNA replication and repair. Without magnesium, the enzymes that “patch” your genetic code can’t function properly.
- Folate (Vitamin B9) & Vitamin B12 – Necessary for DNA synthesis and methylation. Deficiencies can lead to chromosome damage resembling radiation-induced harm.
3. Other Key Supporters
| Nutrient | Function |
|---|---|
| Quercetin | Protects DNA from oxidative stress and also acts as a senolytic. |
| Sulforaphane (from broccoli sprouts) | Activates the Nrf2 pathway, boosting cellular detox and DNA protection mechanisms. |
| Alpha-Lipoic Acid | Powerful antioxidant that protects mitochondria and supports regeneration of other antioxidants. |
A Synergistic Approach
Research, including work by Professor David Sinclair, suggests that combining NAD+ precursors (NMN or NR) with resveratrol is particularly effective. This strategy targets two levers of the same system: fuel (NAD+) and activation (resveratrol).