JoAnna Margaret Lund (September 4, 1944 – May 20, 2006) was the author of many books, including Healthy Exchanges Cookbook, HELP: Healthy Exchanges Lifetime Plan, and Make a Joyful Table.
Born in Lost Nation, Iowa to Jerome McAndrews and Agnes Carrington, she graduated from the University of Western Illinois. In 1990, her son James, daughter Becky, and her son-in-law Mat, were all called into active duty during Operation Desert Storm. Plus, her son Tommy was in the U.S. Army Reserves. She reacted to the stress of the situation by overeating and by her mid-40s weighed 300 pounds. She began to think about her own mortality—and how her weight problem had created a life-threatening situation. She realized that diets had never helped her, and that if she reclaimed her health she could reclaim her life. In order to do so, she devised a method of "exchanges" to enable herself to eat all the food she loved while exchanging the fats and sugars with healthier choices. As friends asked for more and more of her recipes, she created her first cookbook, The Healthy Exchanges Cookbook.
Re-published by G.P. Putnam's Sons in 1993, it has since sold hundreds of thousands of copies.