Bioavailability determines how well your body absorbs and uses nutrients. Animal foods deliver vitamins, minerals, and protein in their most usable forms, while many plant nutrients are harder to access due to antinutrients and conversion losses. A diet centered on meat, eggs, and fish supports energy, brain health, and hormonal balance because these foods align with human biology. Eating animal-based isn’t extreme it’s returning to the diet our bodies recognize and thrive on.