Fri, Jun-14-13, 16:22
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Senior Member
Posts: 15,075
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Plan: mostly milkfat
Stats: 190/152.4/154
BF:
Progress: 104%
Location: Ontario
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http://jn.nutrition.org/content/136/1/319S.long
Found this interesting regarding leucine;
Quote:
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In addition to the direct conversion of amino acid carbon to gluconeogenesis precursors, there is also the contribution of the BCAA to glucose recycling via the glucose-alanine cycle (15,49). There is a continuous flux of BCAA from visceral tissues through the blood to skeletal muscle where transamination of the BCAA provides the amino group for production of alanine from pyruvate with a corresponding movement of alanine from muscle to liver to support hepatic gluconeogenesis. Although the impact of the glucose-alanine cycle has been debated, Ahlborg et al. (49) reported that alanine accounted for 40% of endogenous glucose production during prolonged exercise. Under normal conditions, alanine arising from BCAA nitrogen likely accounts for ∼25% of gluconeogenesis from amino acids (8). These studies provide evidence for the linkage between dietary protein and glucose homeostasis.
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There's some mouse studies out there where dietary leucine was restricted, and body fat became rapidly depleted.
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