Five Nutrients That Can Make a Big Difference in Your Mood
- Dr. Tracy McCarthy
- May 23
- 2 min read
Your brain is always working: thinking, feeling, problem-solving, remembering, and regulating your nervous system.

The foods you eat provide the raw materials your brain uses to create neurotransmitters like serotonin, dopamine, and GABA. The very chemicals responsible for how calm, focused, or motivated you feel.
When these nutrients are missing… mood, energy, and emotional balance can all take a hit.
Let’s take a look at 5 key nutrients that play a powerful role in how you feel every day:
1️⃣ Vitamin D
Often called the "sunshine vitamin," Vitamin D is technically a hormone and a crucial one for mental health.
It helps regulate serotonin, the neurotransmitter that supports mood stability and emotional wellbeing.
Low Vitamin D = increased risk for anxiety and depressive symptoms.
2️⃣ Protein
Protein provides amino acids, the building blocks for brain chemicals.
Tyrosine → dopamine (motivation and focus)
Tryptophan → serotonin (calm and contentment)
Without enough high-quality protein, your brain struggles to make the mood messengers you rely on.
3️⃣ Magnesium
Magnesium is a superstar mineral for brain health. It’s needed to produce calming neurotransmitters like serotonin and GABA, and helps regulate your stress response.
Deficiency can lead to:
Irritability
Anxiety
Sleep issues
Brain fog
And unfortunately, many people are magnesium deficient.
4️⃣ B Vitamins
This family of nutrients is essential for brain energy, detoxification, and neurotransmitter production.
Low levels of B vitamins (especially B6, B12, and folate) can contribute to:
Mood swings
Fatigue
Poor concentration
Irritability
5️⃣ Omega-3 Fatty Acids
Found in fatty fish like salmon and sardines, omega-3s are crucial for brain cell structure and function.
They help reduce inflammation in the brain, which is often linked to mood disorders.
Low intake of omega-3s is associated with a higher risk of depression and reduced emotional resilience.
Bottom line:
Food isn't just fuel, it's information.And what you eat plays a direct role in how your brain functions and how you feel.
If you are ready to support your mood from the inside out using food and root-cause functional strategies? Let’s explore what your body might be missing and how to nourish your way back to balance.
If you are a California resident, Schedule a discovery call today to explore how we can help you feel more like you again.
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