In order to be vegetarian-fed, chickens have to be kept in cages
The calcium regulation is imparted by the associated calmodulin subunits, thus explaining how vasodilators such as acetylcholine and bradykinin effect smooth muscle relaxation as a consequence of increasing intracellular endothelial cell calcium levels
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J Pers Med 14(7):776 Schaffner M, Mhlberger N, Conrads-Frank A, Qerimi Rushaj V, Sroczynski G, Koukkou E, Heinsbaek Thuesen B, Vlzke H, Oberaigner W, Siebert U (2021) Benefits and harms of a prevention program for iodine deficiency disorders: predictions of the decision-analytic euthyroid model
BMI can over and underestimate body fat [archived link] since it doesnt distinguish fat from bone and muscle mass
Not consuming enough nutrients and water also leaves the body without sufficient fuel for training and recovery