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A Animals seem to have the sense to eat when they are hungry and they do not eat more than their bodies’needs. It has been demonstrated that rats will, when given a choice over a period of time, prefer water with vitamins to water without vitamins even though there is no difference in taste or smell between the two Water bottles. When a fragrant (香的)flavor was added to the vitamin-enriched water, the rats did seem to prefer it and kept drinking it, even after the vitamins were switched to the clear water.
A Animals seem to have the sense to eat when they are hungry and they do not eat more than their bodies’needs. It has been demonstrat that a period of time, prefer given a choice over a period of time, prefer water with vitamins to water without Vitamins even though there is no difference in taste or smell between the two Water bottles. When a fragrant flavor was added to the vitamin-enriched water, the rats did seem to prefer it and kept drinking it, even after the vitamins Were switched to the clear water.