tion of activity (Guttmann et al. 1997; Carlin It does have the ability to combine with other et al. 2006). biomolecules that also have physiological Oxidation does occur early in postmortem importance. meat, and it does influence proteolysis (Harris One example of this is its ability to et al. 2001; Rowe et al. 2004b). Rowe et al. combine with superoxide to form the highly (2004) showed that there was a significant oxidizing molecule peroxynitrite. Proteins increase in proteolysis of troponin-T in steaks are important biological targets of peroxyni- from alpha-tocopherol-fed steers after 2 days trite, particularly proteins containing cyste- of postmortem aging compared with steers ine, motioning, and/or tryptophan (Radi et al. fed a conventional feedlot diet. This indicates 2000). Several enzymes are known to be
which can be toxic.2 The increase in iron was far more alarming to me than the changes in cholesterol. Here is just one of several explanations from the research literature: In addition to contributing to metabolic abnormalities, the consumption of fructose has been reported to a ect homeostasis of numerous trace elements. Fructose has been shown to increase iron absorption in humans and experimental animals. Fructose intake [also] decreases the activity of the copper enzyme superoxide dismutase (SOD) and reduces the concentration of serum and hepatic copper. The moral of the story? Don't drink fruit juice, and absolutely avoid a high-fructose diet. It doesn't do the body good. TOOLS AND TRICKS The Three-Minute Slow-Carb Breakfast (www.fourhourbody.com/breakfast) Breakfast is a hassle. In this video, I'll show you how to make a high-protein slow-carb breakfast in three minutes that is perfect for fat-loss and starting the day at a sprint. Still Tasty (www.stilltasty
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