"I was so shaken with the news that my body was trembling," she told ABCNews.com today. "I have been fighting so hard for these 348,000 people, being their voice." Hari, 34, delivered the signatures to Kraft headquarters last spring and said she "continues to keep the pressure on" through her writing and getting others to call corporate headquarters and "waging a war" on Facebook. "I have built an army of people concerned about food and not only what their families are eating, but all of America," Hari said. She has been worried about the additives -- yellow dye 5 and yellow dye 6, which she said added nothing to the flavor and may be dangerous to kids' health. Hari did some investigating and found that Kraft makes the same Mac and Cheese for its consumers in the United Kingdom, but because of stricter rules regarding additives, it is dye-free. There, Kraft uses natural beta carotene and paprika to make it almost the same color."

“I want to applaud Vani for the work she’s doing, this is how you change the health of our nation.”

“Vani Hari’s blog, FoodBabe.com, and her “leading by example” style of food activism is an inspiration to a growing number of people not just in the US but around the world.”

Vani Hari, who started the petition on Change.org and runs the website FoodBabe.com, said she expects Kraft will remove artificial dyes from other products down the road. "I knew all along that it wasn't going to be an overnight change," said Hari, who is based in Charlotte, N.C. "This is a big corporation, and this is one of their biggest products."

"Food Babe. She is a force to be reckoned with, most recently with her efforts to get Kraft to pull artificial food colors and dyes from the products that they sell here in the United States. And she has made incredible strides, most likely because of her gorgeous approach and the fact that Kraft has already removed artificial dyes from their products in other countries. But she is so much more than just boxed noodles, she is a force for good when it comes to cleaning up our food supply."

One year ago, in November 2012, GMO Inside starting calling on consumers to put pressure on General Mills to make Cheerios without GMOs due to concerns over the health and environmental impacts of GMOs. Cheerios are a top selling cereal in the U.S. and often one of the first solid foods fed to children. As soon as the campaign launched, tens of thousands of consumers started flooding Cheerios' Facebook page with concerned comments regarding GMOs in Cheerios and used an app put out by Cheerios to spell out anti-GMO messages in the Cheerios font. In October 2013, GMO Inside issued a real corporate responsibility report for General Mills, and called on consumers to email and call the General Mills to get GMOs out of Cheerios. GMO Inside also put out a video highlighting the GMOs in Cheerios that was watched by over 200,000 viewers. Over 25,000 people took part in the email actions and calls to the company. In the past week callers to the company were told that Cheerios would have a big announcement about GMOs soon.

Green America Corporate Responsibility Director Todd Larsen stated: "Removing GMOs from original Cheerios is an important victory in getting GMOs out of our food supply and an important first step for General Mills. Original Cheerios in its famous yellow box will now be non-GMO and this victory sends a message to all food companies that consumers are increasingly looking for non-GMO products and companies need to meet that demand."

John W Roulac, GMO Inside co-founder and co-chair stated: "This is a huge victory for the non-GMO movement. I want to thank all the "GMO Insiders "for using social media to convince America's largest packed food brand to go non-GMO with a major product. History is being made today and more food brands will rush towards non-GMO foods."

“Chick-fil-A Removes Corn Syrup From Products After Blogger Takedown”

The changes come after blogger Vani Hari wrote a post in 2011 titled "Chick-fil-A or Chemical Fil-A?" on her site, FoodBabe.com. It noted that the chain's sandwich had nearly 100 ingredients, including peanut oil with TBHQ, a chemical made from butane. Hari, based in Charlotte, N.C., continued writing about Chick-fil-A's ingredients. Then last year, the company invited her to its headquarters to spend the day talking with executives. "They took my concerns and started developing a road map of how to address them," Hari said. On Wednesday, she said she was notified about the changes in an email from the company.

Chick-fil-A eventually responded, inviting Ms. Hari in October 2012 to spend a day at its headquarters in Atlanta, where she discussed her concern about some ingredients as well as larger issues like the use of chicken from animals whose feed contains antibiotics and the potential for labeling products that have genetically engineered components.

How This Food Blogger Convinced Chick-fil-A to Go Antibiotics Free

"This is a huge deal," says Vani Hari, health activist and creator of the website foodbabe.com, of Chick-fil-A's action. "This is the most concerning food issue of our time, because if we can't treat diseases with antibiotics, it has the potential to wipe out the human race." Antibiotics aren't just used to prevent diseases on chickens, but, she says, are typically injected at birth to fatten them up."

"Few wins are sweeter than when one person stands up to an enormous, international food chain and prevails. In this case, the one person is the blogger known as Foodbabe, aka Vani Hari, and, really, it’s not just her, since her whole community was in on it, and, actually, the taste is more south-of-the-border savory than sweet."