There has not been, to my knowledge, any evidence to support higher levels of dietary protein having any kind of negative effect, ever.

据我所知，从来没有任何证据表明高水平的膳食蛋白质有任何负面影响。

The results show that cold-water immersion inhibited the uptake of amino acids and creation of new myofibrillar proteins, muscle, from the dietary protein consumed.

结果表明，冷水浸泡会抑制氨基酸的吸收，并产生新的肌原纤维蛋白，肌肉。