Carl Rehnborg was an American entrepreneur and nutritionist, best known for founding the company Nutrilite in the 1930s. He developed a line of dietary supplements that emphasized the importance of vitamins and minerals derived from whole foods. His work contributed to the growing awareness of nutrition and health in the United States. Rehnborg's innovative approach to health and wellness led to the creation of the first multivitamin supplement. His commitment to quality and natural ingredients helped establish Nutrilite as a leader in the dietary supplement industry, influencing many other companies and shaping modern nutritional practices.