The men were asked questions about their diet and gae sperm samples, and their mothers were asked questions about their diet, including frequency and type of meat consumption, when they were pregnant.

• 研究者们调查了男子们有关饮食的情况，并留取了精子的样本，同时也调查了他们的母亲的饮食情况，包括他们怀孕期间吃的肉类的品种和频率。