A "7 plan" can refer to different concepts depending on the context, but based on the search results, here are some common interpretations:

• The 7 Systems Plan : A health and weight loss program focusing on optimizing the function of seven body systems to achieve lasting weight loss, heal chronic illness, and improve overall health. It is based on decades of research and aims to address root causes of health issues rather than symptoms

• 7 in 7 on Nutrisystem : A weight loss program's first week plan designed by dietitians to help individuals lose up to 7 pounds in 7 days. It includes specially selected meals, shakes, and bars to control hunger and promote fat burning, along with guidelines for hydration and meal spacing

• 7-Day Diet or Meal Plans : Many diet plans span seven days, providing structured meals and snacks to promote weight loss, fitness, or balanced nutrition. These plans often emphasize high-protein, high-fiber foods, balanced macronutrients, and calorie control to support energy, muscle building, and endurance

In summary, a "7 plan" often means a structured program or plan lasting seven days, aimed at weight loss, fitness improvement, or health optimization through diet and lifestyle changes. The specifics vary by program but generally include meal planning, nutritional guidance, and sometimes supplementation or system-focused health strategies.