Kay McConaughey Later in the interview, Kay, who is affectionately referred to as "MaMac" by Matthew and his wife Camila Alves, gave insight into her family life with her son and daughter-in-law.

Matthew McConaughey's mother ... In an interview with Austin Lifestyle, McConaughey — born Mary Kathlene McCabe — said she's able to lead a vibrant life because she eats well, exercises ...