Non-Alcoholic Fatty Liver Disease, abbreviated NAFLD, is a metabolic liver condition defined by excess fat accumulation in liver cells in people who do not have alcohol-driven liver injury. The main biological pattern involves hepatic fat storage, insulin resistance, altered lipid handling, oxidative stress, mitochondrial strain, inflammatory signaling, and changes in gut-liver communication. When more fatty acids enter the liver than the liver can safely oxidize, export, or store, triglycerides can accumulate inside hepatocytes. This pattern is strongly connected with visceral adiposity, high refined carbohydrate intake, excess added sugar, low fiber intake, sedentary behavior, dysregulated blood glucose, and abnormal blood lipids. Fructose-rich and refined-sugar dietary patterns can increase de novo lipogenesis, the process by which the liver converts excess carbohydrate into fat. Insulin resistance also increases fatty acid release from adipose tissue and drives higher hepatic fat delivery. Over time, fat-loaded hepatocytes may generate more reactive oxygen species, stress the endoplasmic reticulum, alter mitochondrial function, and activate inflammatory pathways such as NF-κB, JAK/STAT, cytokine signaling, and eicosanoid-linked processes. Gut microbiome changes can also influence hepatic inflammation through microbial metabolites, intestinal barrier signaling, bile acid metabolism, and short-chain fatty acid production. A P53 Nutrition whole-food plant-based pattern supports NAFLD-related biology by emphasizing intact carbohydrates, legumes, leafy greens, cruciferous vegetables, berries, mushrooms, seeds, whole grains, herbs, spices, and unsweetened green tea while avoiding oils, meat, dairy, alcohol, fried foods, refined sugar, artificial additives, preservatives, and ultra-processed foods. This approach increases fiber, polyphenols, carotenoids, glucosinolates, magnesium, potassium, folate, vitamin C, vitamin E, vitamin K1, and plant protein without adding dietary cholesterol or concentrated oils. Whole plant foods can support satiety, lower energy density, improve post-meal glucose handling, provide substrates for short-chain fatty acid production, and reduce exposure to compounds associated with oxidative and inflammatory stress. Broccoli, kale, spinach, romaine lettuce, sweet potato, blueberries, blackberries, pomegranate, black beans, lentils, oats, brown rice, flax seeds, chia seeds, pumpkin seeds, shiitake mushrooms, turmeric, ginger, and green tea provide nutrients and phytochemicals that connect directly to antioxidant response, AMPK signaling, insulin signaling, gut microbiome signaling, SCFA signaling, bile acid metabolism, and inflammatory pathway regulation.