You are what you eat. We all know that phrase, and sometimes it feels like a “told you so,” but what if I told you that what you eat today, specifically the type of carbs you eat, really does influence how well you age and can boost your mood? Emerging science suggests exactly that: A study published in 2025 shows that the quality of the carbs you eat in midlife increases your odds of aging with strong physical health, sharp cognition, and overall wellbeing.¹ The keyword is quality.