but without reducing lifespan
However, methionine alone was necessary and sufficient to increase fecundity as much as did full feeding, but without reducing lifespan. Reallocation of nutrients therefore does not explain the responses to dietary restriction.
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but without reducing lifespan
但不会缩短寿命
以上为机器翻译结果，长、整句建议使用 人工翻译 。