 He emphasized the threat of pollution and the need for pure air and pure water, recommendations for safe sunbathing, and the dangers of cholesterol and fats in the American diet.As the spa increased in size in the early 1950s and began to operate year-round, visitors of another sort were attracted by the weight-loss potential of Rancho la Puerta's vegetarian diet.Szekely and his wife began searching for and hiring specialists in yoga and other mind/body exercise regimens, adding a fitness aspect to their offerings.