CLA is an anti-carcinogen found in meat and dairy. CLA are unique among naturally occurring anticarcinogenic substances in that it is potent at extremely low levels and is present in foods from ruminant animals.

Research indicates an ideal daily dose of CLA ranges from 0.01 to 2 percent or more of daily caloric intake. One study proposes that an effective dose for a 165-pound person is 3-5 g/day.

Doses of this magnitude require supplementation. Most people ingest less than 1 g/day of CLA from food sources, which are largely limited to meat and dairy. For example, cheese averages 2.9 mg-7.1 mg of CLA per gram of fat. A 3 g CLA dose requires eating several pounds of cheese a day.

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