A new diet initiative in Ohio includes bamboo fronds and ficus branches.

It's a Cleveland Zoo effort to give two Western lowland gorillas a healthier menu free of processed biscuits.

The gorillas were diagnosed with heart disease, and the zoo says a diet favoring greenery provides more fiber and less sugar.

The diet includes dandelion greens, endive and romaine lettuce, the leaves and bark of ficus branches, and bamboo fronds.

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The greens are scattered about the gorillas' enclosure, which lets them forage as they might in the wild. The diet change is part of a larger drive to improve the health of the animals.

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Information from: The Plain Dealer, http://www.cleveland.com