Category: 21 Day

Our 21-day section groups plans that run three full weeks, 21 Day Fix at 1,200 and 1,500 kcal, 21 Day Sugar Detox, 21 Day Energy Boosting, 21 Day Anti-Inflammatory, 21 Day Keto Challenge, 21 Day Smoothie, and a 21 Day Weight Loss Challenge with a 104-food shopping list.

Each 21-day plan is built as three progressive weeks, week 1 establishes the calorie deficit and clears trigger foods, week 2 stabilizes portions and adds structured movement, week 3 practices the maintenance pattern. Nutrition data is calculated per meal against the Nutritionix database and USDA references, protein held at or above 0.8 g/kg body weight, fiber above 25 g per day, added sugar kept low unless the plan is explicitly a reset.

21-day plans are written or reviewed by a Registered Dietitian on our team, Brenda Peralta, Kerly Cordova, Marita Radloff, or Karolina Peterova, and medically reviewed by Franco Cuevas, MD. Recipes are developed and tested by our Food Editor Damla Sengul in our Wayne, NJ kitchen. Corrections go to social@dietsmealplan.com.