Why most people need to supplement—even with a great diet

🌿 While food should always be our first source of nutrients, the reality is that modern living has changed the equation. Soil depletion, food transport, toxin exposure, stress, and lifestyle habits all reduce the quality of nutrients we absorb—even when we eat well.

🧪 Research shows that many people are deficient in key nutrients like Vitamin D, Omega-3 fatty acids, Magnesium, and B vitamins. These deficiencies can impact everything from energy and brain function to hormone production, immune health, and mood regulation. For example, Vitamin D plays a critical role in immunity and inflammation, while Magnesium supports over 300 enzyme systems in the body, including those that regulate sleep and stress.

Some people may also benefit from targeted supplements like sulforaphane precursors (from broccoli sprouts) for detoxification, or higher doses of Omega-3s for inflammation and brain health. Testing and personalized support are key to knowing what you actually need.

🔧 Tip: Use food as your foundation, then layer in strategic supplements to meet your body’s unique needs. Look for high-quality, bioavailable forms and reassess your needs with the seasons or life transitions. A targeted approach works better than a supplement “multiverse.”


At Vagal, we help you identify your nutritional gaps and guide you toward smart, safe, and effective supplementation.

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The link between gut health and immune function

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How fasting supports metabolic and hormonal health