CRT is a Ca-binding protein resident in endoplasmic reticulum (ER), which is involved in protein folding, ER homeostasis and MHC class I molecule assembly (106)
While not a feature all that many will necessarily use, especially when some big races offer their own form of tracking, its a great effectively free upgrade
For context, Finnrick rates vendors on an A-through-E scale across 136 vendors and 1,941 independent tests
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5 The average intake of vitamin B 12 in the United States is 3.4 mcg per day, and the recommended dietary allowance is 2.4 mcg per day for adult men and nonpregnant women, and 2.6 mcg per day for pregnant women