Astaxanthin, the reddish-pink pigment found in salmon and other seafood, may improve brain health and fight cognitive decline by improving synaptic plasticity, reducing neuroinflammation, and boosting beneficial signaling pathways.

This study describes a novel way to slowly deliver hydrogen sulfide to mice, improving various aspects of Alzheimer’s disease; this could potentially treat cognitive decline if translated to humans.

Quercetin is a flavonoid that may be neuroprotective — in studies with animals and cell cultures, at least. In this study, quercetin improved memory and reduced oxidative stress and neuroinflammation in aging mice.

Research has found that curcumin, the active component in turmeric, has brain-protecting properties, making curcumin a prime target for supporting cognition.