Key Takeaways:

• McCann expands his critique of refined and adulterated foods, especially white flour and sugar, blaming them for widespread physical degeneration.
• He argues for whole, unprocessed foods and careful attention to food quality as the real "science" of eating, rather than calorie counting alone.
• Industrial food practices are portrayed as a public menace that science and law must confront, not simply a matter of taste or convenience.
• Nutrition is woven together with religious and patriotic language, presenting wholesome eating as both a duty to God and a safeguard for the nation’s future.