PCRM (Physician's Committee for Responsible Medicine) offers a "21-day Vegan Kick Start Program" that begins the first day of every month. However, you may register for it at anytime during the month.
Dr. John McDougall's excellent article, USDA Demonizes Starch, While Promoting Meat, Dairy, and Disease, explains how USDA dietary guideline policies have significantly impacted the health of our families. Dr. McDougall's article states: "The USDA has the responsibility for overseeing food safety. But, it also has an opposing responsibility to promote agricultural businesses. Nearly 150 years after its creation, tens of thousands of small farms have been bought up and concentrated into a few large politically influential corporations, and the USDA has become the "Agribusiness Industries' Department," primarily serving the interests of giant food production and distribution corporations."