1. A method of treating a puppy prone to diarrhea or suffering from it and / or loose stool, comprising adjusting the balance of metabolizable cations to the metabolizable anions consumed by the puppy using an amount sufficient to improve stool quality by increasing the balance of metabolizable cations by relative to the metabolizable anions consumed by the puppy to obtain harder stools. 2. The method of claim 1, wherein the balance of metabolizable cations with respect to metabolizable anions is increased by increasing the amount of metabolizable cations consumed by the puppy. The method of claim 1, wherein the balance of metabolizable cations with respect to metabolizable anions is increased by reducing the amount of metabolizable anions consumed by the puppy. The method of claim 1, wherein the balance of metabolizable cations with respect to metabolizable anions is increased by increasing the amount of metabolizable cations and decreasing the amount of metabolizable anions consumed by the puppy. A method for treating a puppy prone to or suffering from diarrhea and / or loose stool by modifying the quality of the stool of the puppy, comprising: a. adding enough metabolizable cations to the feed composition sufficient to increase the DCAB of the feed composition b. administering the feed composition from step (a) to the puppy； c. assessment of the quality of the stool secreted by the puppy； and d. repeating steps (a) to (c) until the puppy selects a chair of the desired quality.1. Способ лечения щенка, склонного к диарее или страдающего от нее и/или от жидкого стула, включающий регулирование баланса метаболизируемых катионов по отношению к метаболизируемым анионам, потребляемым щенком, с помощью количества, достаточного для улучшения качества стула, посредством увеличения баланса метаболизируемых катионов по отношению к метаболизируемым анионам, потребляемым щенком, для получения более твердого стула.2. Способ по п.1, где баланс метаболизируемых катионов по отношен
