01/11/2012 02:04 pm ET

Could Omega-6 Make You Fat?

While our bodies do require some omega-6, Lassek says the excessive amount in the average American's diet has been shown to increase appetite and weight, and also promote inflammation in your body tissues. "Our extraordinarily heavy dose of omega-6 is not good for us," he says, noting that inflammation plays a critical role in coronary disease.

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