Oily fish is rich in protein, which is a fundamental food group for dieters to consume.
Protein helps build muscle, and on a high protein diet a person’s appetite can be satisfied on far fewer calories.
This is because protein takes longer to digest than carbohydrates.
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James, who is 6ft 4in tall, weighed in at 19st 17lb at his heaviest.
He decided to slim down because he was conscious of how he appeared on television.
Source: Daily Express | Diet
