Feeding guides are calculated by dividing the pet’s daily energy requirements by the energy density of the food, following the 2 step approach outlined in figure 1 <ref name="Waltham Pocket Book">WALTHAM pocket book of healthy weight maintenance for dogs and cats. (2010) Ed. German, A. and Butterwick, ''R.F. Pub Beyond Designs Solutions Ltd.''</ref>.
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Feeding guides are calculated by dividing the pet’s daily energy requirements by the energy density of the food, following the 2 step approach outlined in figure 1 <ref name="Waltham Pocket Book">'''WALTHAM pocket book of healthy weight maintenance for dogs and cats'''. (2010) Ed. German, A. and Butterwick, ''R.F. Pub Beyond Designs Solutions Ltd.''</ref>.