“As a general definition, it may be stated that a food is a substance which, when introduced into the body, supplies material which renews some structure or maintains some vital process; and it is distinguished from a medicine in that the latter modifies some vital action, but does not supply the material which sustains such action.”Help us translate this quoteEdward Smith (physician) Introd., p. 1 Foods
“The same nutritive elements exist in both vegetable and animal foods, and … within certain limits, the two classes of food are interchangeable.”Help us translate this quoteEdward Smith (physician) Source: Foods, Ch. XIX, p. 143
“Every … element, whether mineral or organic, which is required for nutrition is found in the vegetable kingdom.”Help us translate this quoteEdward Smith (physician) Source: Foods, Ch. XIX, p. 143
