Danielle Walker (born February 17, 1985) is an American writer, founder and editor of the gluten and grain-free food blog Against All Grain, and the best-selling cookbook of the same name.

[1] Walker began experimenting with healthy cooking because she was suffering from the inflammatory bowel disease ulcerative colitis.

[2] She tried the specific carbohydrate diet but found that it did not totally relieve her symptoms.

After some research, she tried the paleo diet and found that it helped her treat her condition.

[14][15] Walker was featured on Steven and Chris, a Canadian talk show on CBC Television, where she made spinach sausage lasagna.