80/20 Lifestyles The 80/20 principle is not a diet, but a lifestyle. An 80/20 lifestyle teaches balance and moderation instead of rigid and limiting. With 80 percent of the time focused on eating clean, good-for-you foods, and 20 percent of the time freedom to indulge as you please. Simply put when your on your 80, you love your Life! When your on your 20, you live your Life!