Today, calorie-dense food loaded with salt, sugar and fat is everywhere.
今天，富含盐、糖和脂肪的高热量食物随处可见。
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We're consuming a lot of really highly processed calorie-dense food that's incredibly sterile, so they lack the microbial reservoirs for these gene transfer events.
"You can't ignore that chocolate is a relatively calorie-dense food and large amounts of habitual consumption is going to raise your risk for weight gain," he says.