6 surprising ways an unhealthy diet can hurt your health
An unhealthy diet can affect your well-being in a variety of ways.
Jan, 2026
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You probably know that the foods you eat—and the amounts you consume—can affect your weight. But a diet that’s high in processed foods and unhealthy fats (like trans fats and saturated fats) can affect your health and well-being in other ways, as well.
“It sounds simplistic, but we really are what we eat,” says Kathryn Friedman, BS, CHHC, a health and wellness coach in New Jersey. “What we put in our body is used as building blocks to create new cells. A poor diet affects everything.”
Discover the various ways that unhealthy foods can affect your health—and what to add to your plate instead for a healthier diet.
Written byRachael Anderson.
Medically reviewed byAmy Gonzales, MD.