Calm, honest write-ups of the supplements people reach for when their mood is low.

The marine fats your brain is partly built from. When mood runs low, an EPA-rich omega-3 is among the better-studied nutrients worth raising with your doctor — a supportive nutrient alongside diet and care, never a treatment on its own.

The 'sunshine vitamin' doubles as a hormone precursor involved in brain function. Low vitamin D status is consistently linked with low mood — especially in winter and indoor lifestyles.

A gentle, highly absorbable form of magnesium — the mineral your nervous system uses to downshift. A favorite for evening wind-down, stress resilience and sleep quality.

B vitamins are co-factors in the very pathways the brain uses to make neurotransmitters. Deficiencies — especially B12 and folate — are well-known contributors to fatigue and low mood.

The most clinically studied adaptogen for everyday stress. Root extracts like KSM-66 have repeatedly been shown to lower perceived stress and cortisol versus placebo.

The amino acid that makes green tea calming rather than jittery. L-theanine promotes a state of relaxed alertness without sedation — useful for stress and focus alike.