Dr. Francis de Sales Woidich, 53, a physician and founding director of the Health Renewal Research Foundation in McLean, died of a heart attack June 7 while on a business trip in Winston-Salem, N.C.

He established the nonprofit foundation in 1960 to do research on nutrition and biochemical needs of the body. He established a private medical practice at the same location in McLean in 1972.

Born in Battle Creek, Mich., Dr. Woidich graduated from Harvard University in 1945. After two years in the Navy Intelligence Service, he entered George Washington University Medical School, and graduated in 1952.

After interning at D.C. General, Children's and St. Elizabeths hospitals for a year, he became a medical officer [WORD ILLEGIBLE]Elizabeths. He was associated with the hospital until his death. He also was a research fellow in the department of pediatrics at George Washington University in 1953-54, and a research associate in the department of physiology from 1954 to 1959.

In his private practice, Dr. Woidich emphasized preventive medicine and rehabilitation through applied nutritional and metabolic principles.

He was a founding member of the American Society for Photobiology and belonged to the New York Academy of Services, the Smith-Reed-Russell Medical Honor Society, the International Academy of Preventive Medicine, the College of Applied Nutrition and the Biofeedback Society of America.

He is survived by his wife, Carmen, of the home, and two stepsons, Thomas and Robert Sedaker.

The family suggests that expressions of sympathy may be in the form of contributions to the Health Renewal Foundation, which will bear his name.