Calorie amounts were similar for both diets. Foods are known to alter the epigenetics of rats on different diets. Highly restrictive fad diets should be avoided. Felines are carnivores and have adapted to animal-based diets and low carbohydrate inclusion. Studies on the health effects of vegetarian diets observe mixed effects on mortality. Differences include food standards, laws, and general cultural attitudes of vegetarian diets. Caterers usually produce alternative meals for passengers with restrictive diets. Promotion of the Mediterranean diets among the obese may lower the risk of heart disease. The base of most lactating dairy cattle diets is high quality forage. Netter was skeptical of the claims of alternative medicine and fad diets. A raw version of halva also has become popular among proponents of raw food diets. Early settlers relied on hunting, fishing, trapping, and foraging to supplement their diets and incomes. Taurine deficiency has been found in dogs and cats fed extruded commercial diets. The food of ancient Israel was similar to that of other ancient Mediterranean diets. She has written books on Detox diets.