How ethical are our food companies?

Ivana Kottasova, CNN
Updated 5:01 PM EST, Wed February 26, 2014
Nestle, the maker of KitKat, Nescafe and Maggi, is at the top of the rankings. Oxfam says: "Nestle leads the way on climate change and water usage, worker rights and is the most transparent."
1. Nestle —
Nestle, the maker of KitKat, Nescafe and Maggi, is at the top of the rankings. Oxfam says: "Nestle leads the way on climate change and water usage, worker rights and is the most transparent."
FABRICE COFFRINI/AFP/Getty Image
Unilever, which is behind brands such as Ben & Jerry's, Knorr and Hellmann's, is closing in on top spot on Oxfam's scorecard. Oxfam says it "scores well on supporting small-scale farmers, workers rights, action on climate change and managing water usage."
2. Unilever —
Unilever, which is behind brands such as Ben & Jerry's, Knorr and Hellmann's, is closing in on top spot on Oxfam's scorecard. Oxfam says it "scores well on supporting small-scale farmers, workers rights, action on climate change and managing water usage."
Jamie McCarthy/Getty Images for Ben & Jerry'
Coca-Cola, the world's leading beverage maker, comes third. "Coke leads the way on respecting land rights and in supporting women. It scores higher on policies related to workers' rights, climate change and water but is left trailing the top companies due to poor performance on support for farmers," Oxfam says.
3. Coca-Cola —
Coca-Cola, the world's leading beverage maker, comes third. "Coke leads the way on respecting land rights and in supporting women. It scores higher on policies related to workers' rights, climate change and water but is left trailing the top companies due to poor performance on support for farmers," Oxfam says.
LIONEL BONAVENTURE/AFP/Getty Images
Oxfam praises Mondelez on women's rights, but says: "Mondelez owns Cadbury and Oreo, but its business behavior is less than sweet. It performs poorest on climate change and struggles on water, transparency and land rights."
4.- 5. Mondelez —
Oxfam praises Mondelez on women's rights, but says: "Mondelez owns Cadbury and Oreo, but its business behavior is less than sweet. It performs poorest on climate change and struggles on water, transparency and land rights."
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"PepsiCo fizzes in the top half of the scorecard, particularly for its climate policies, but still falls flat on helping farmers, the treatment of women and transparency," Oxfam says about the maker of Doritos, Pepsi and Tropicana.
4. - 5. PepsiCo —
"PepsiCo fizzes in the top half of the scorecard, particularly for its climate policies, but still falls flat on helping farmers, the treatment of women and transparency," Oxfam says about the maker of Doritos, Pepsi and Tropicana.
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According to Oxfam, the dairy giant Danone, which also owns Evian and Volvic, is doing above average on water, climate and transparency. However, Oxfam says it needs more "commitment to supporting women, farmers or land rights."
6. Danone —
According to Oxfam, the dairy giant Danone, which also owns Evian and Volvic, is doing above average on water, climate and transparency. However, Oxfam says it needs more "commitment to supporting women, farmers or land rights."
MYCHELE DANIAU/AFP/Getty Images
"Neither horrific nor heroic," Oxfam says about the improvement of Mars, the candy maker behind Skittles, Mars and Twix. "Their new commitment to support women in their supply chains is helping to inch their way up the scorecard," it adds.
6. Mars —
"Neither horrific nor heroic," Oxfam says about the improvement of Mars, the candy maker behind Skittles, Mars and Twix. "Their new commitment to support women in their supply chains is helping to inch their way up the scorecard," it adds.
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Kellog's, the owner of Pop-Tarts, Cornflakes and Pringles, scored poorly in the "rights of workers" category of the Oxfam ranking, but has improved on supporting women, land rights, water and climate.
8. Kellogg's —
Kellog's, the owner of Pop-Tarts, Cornflakes and Pringles, scored poorly in the "rights of workers" category of the Oxfam ranking, but has improved on supporting women, land rights, water and climate.
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Associated British Foods, the maker of Twinings and Jordans, has moved off last place, because it improved its policies on gender, climate and land. But Oxfam says: "ABF still needs to improve on a number of issues."
9. ABF —
Associated British Foods, the maker of Twinings and Jordans, has moved off last place, because it improved its policies on gender, climate and land. But Oxfam says: "ABF still needs to improve on a number of issues."
Matthew Lloyd/Getty Images
General Mills, which owns Cheerios, Haagen-Dazs or Old El Paso, was the only one of the world's largest 10 food and drink companies to lose points since the first survey last year. Oxfam gives it credit for its water management policies, but says it has a "long way to go to catch up on all the other issues."
10. General Mills —
General Mills, which owns Cheerios, Haagen-Dazs or Old El Paso, was the only one of the world's largest 10 food and drink companies to lose points since the first survey last year. Oxfam gives it credit for its water management policies, but says it has a "long way to go to catch up on all the other issues."
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How Oxfam ranks the biggest food companies