Sound sensitivity is a condition where ordinary sounds feel unusually loud, sharp, stressful, painful, startling, or difficult to tolerate. It may appear as hyperacusis, reduced sound tolerance, noise sensitivity, or sound-triggered discomfort. The biology involves more than the ear alone. Sound enters through the outer and middle ear, reaches the cochlea, activates sensory hair cells, and is transmitted through the auditory nerve into brainstem, thalamic, cortical, and limbic networks. When these pathways become over-responsive, normal sound can be interpreted as excessive or threatening. Research links sound sensitivity with altered central auditory gain, migraine biology, tinnitus, stress response activation, sleep disruption, anxiety-related arousal, concussion-related sensory changes, oxidative stress, neuroinflammatory signaling, and autonomic nervous system imbalance. The cochlea is metabolically active and vulnerable to oxidative stress because sensory hair cells require high mitochondrial energy and have limited regenerative capacity. Excess noise exposure, inflammatory signaling, poor sleep, and toxin exposure can increase reactive oxygen species and stress inner-ear cells. Magnesium is involved in nerve signaling, vascular tone, and excitability regulation. B vitamins support mitochondrial energy production, methylation, myelin maintenance, and neurotransmitter metabolism. Vitamin C, vitamin E, carotenoids, flavonoids, catechins, sulfur compounds, and glutathione-linked pathways help support antioxidant defense. Potassium is important for fluid and electrical gradients that support nerve and inner-ear function. Whole-food plant patterns also provide fiber and polyphenols that support vascular, metabolic, inflammatory, and gut-microbiome signaling. P53 Nutrition supports sound sensitivity through a 100% whole-food plant-based standard with no oils, no meat, no dairy, and no toxins. The reader is supported with leafy greens, berries, citrus, legumes, whole grains, nuts, seeds, mushrooms, herbs, spices, and unsweetened green tea. This food pattern emphasizes magnesium-rich greens and seeds, potassium-rich plants, antioxidant-rich fruits, polyphenol-rich berries, sulfur-rich allium vegetables, cruciferous vegetables, and slow-release whole grains. The goal is to support auditory nerve stability, mitochondrial energy production, antioxidant capacity, vascular flow, hydration, sleep rhythm, stress-response balance, and inflammation-related pathways through whole plant foods only. This approach does not present a medical or pharmacy solution; it organizes published nutrition and biology data into a plant-based support framework.