Celebrity Moms Give Back

Halle Berry

As a diabetic herself, Oscar winner and mom of Nahla, 3, Berry has a personal connection to the work of Diabetes Aware, which helps those with the disease manage it.

• Learn more about Diabetes Aware.

Julia Roberts

Oscar winner and mother of three, Roberts supports Hole in the Wall Gang Camp, for children suffering from cancer, sickle cell anemia, HIV/AIDS, and other diseases.

• Learn more about Hole in the Wall Gang Camp.

Heidi Klum

Supermodel and mother of four, Klum assists the Elizabeth Glaser Pediatric AIDS Foundation, providing HIV prevention and treatment for women, children, and families.

• Learn more about the Elizabeth Glaser Pediatric AIDS Foundation.

Courteney Cox

The Cougar Town star and mom of Coco, 6, is an advocate for OmniPeace, an L.A.-based fashion brand. It donates profits to promoting peace, human rights, and education, and to ending poverty in Africa.

• Learn more about OmniPeace.

Christina Applegate

After being diagnosed with breast cancer in 2008, Applegate created Right Action for Women, a foundation that educates women about breast cancer and provides aid to those who can't afford insurance to cover screenings.

• Learn more about Right Action For Women.

Marcia Cross

She plays a desperate housewife on TV, but she's also joined forces with Feeding America, which distributes food through a nationwide network of food providers and seeks to increase public awareness about the issue of hunger in America.

• Learn more about Feeding America.

Jennifer Lopez

Lopez created The Maribel Foundation, funding telemedicine clinics connecting children in underprivileged communities with top pediatric specialists.

• Learn more about The Maribel Foundation.

Reese Witherspoon

Oscar winner and mother of two, Witherspoon serves as honorary chairperson of the Avon Foundation, a nonprofit that tackles breast cancer and domestic violence.

Jennifer Garner

This star lends a hand to Milk + Bookies, where children select, purchase, and inscribe books that are donated to peers who don't have books. Garner has two daughters, Violet, 5, and Seraphina, 2.

• Learn more about Milk + Bookies.

Katherine Heigl

When Heigl was a kid her older brother died in a car accident and her family donated his organs. Heigl now works with Donate Life America to inspire people to sign up to be organ donors.

Alicia Keys

The singer and new mom is a cofounder and global ambassador for Keep a Child Alive. The organization provides treatment and support to children and families affected by HIV/AIDS in Africa and India.

Originally published in the May 2011 issue of Parents magazine.

• More on Parents Who Change the World
• Read About Moms and Dads Making Laws and History