After consuming the tomatoes along with a high-fat and high-calorie diet, there were a number of signs suggesting a beneficial effect, including significantly lower levels of inflammation, higher levels of the antioxidant paraoxonase, higher HDL levels, and less atherosclerotic plaque.

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However, exercise had a much greater effect on animals that were also given the supplement amino acid L-argenine, and antioxidant vitamins C and E.

BBC: Exercise is good for health