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 「食用迅速成長的幼嫩牧草的牛，不僅所產的乳製品品質極佳，動物本身的體格也比吃榖類萃取物時更好。再者，以這些牛的乳汁所飼養的小牛，比吃糧草的小牛長得更快，對疾病的抵抗力也更佳。」——《體質大崩壞》p.331 「飼料的最佳來源是麥草和黑麥草。雖然麥草和黑麥草是目前所知品質最好的飼料，但所有迅速生長的青草品質也都相當不錯。至於乾草，除非乾燥的過程中能很小心的保留住其葉綠素（維生素 A 的前驅物質），否則以乾草為飼料的牛無法合成脂溶性維生素。」——《體質大崩壞》p.260 「如果牛吃的是三級乾草，胡蘿葡素太少，不僅無法孕育出強壯的小牛，就連牠們的牛奶也不能維持小牛的健康。」——《體質大崩壞》p.269 牛奶的品質與母牛本身的營養習習相關，根據 Transparent Labs，草飼放牧牛、室內牛棚、工廠化餵食乾草的牛奶其營養價值便有所不同。草飼牛在 omega-3、維生素 B、維生素 E、礦物質（鈣、鎂、鉀）、共軛亞麻油酸（conjugated linoleic acid, CLA） 都有更多的含量。[1] 那牛奶的加工產品乳清蛋白粉呢？同樣有類似的效益，乳清蛋白粉其實是起司製程的副產品，是一種包含乳清蛋白（whey protein）的混合物，濃縮乳清約莫有 80% 的乳清蛋白，其他則是醣類、脂質與微量營養素。草飼乳清在脂質、微量營養素方面延續了草飼牛奶的優點。 而在蛋白質方面，研究指出 [2] 草飼乳清有更多的：
整體來說，草飼乳清能夠增強免疫系統、降低消炎反應，並幫助健康的能量水平。[3] 延伸閱讀：台南牛肉湯 - 從牧場到餐桌這段路 https://www.newsmarket.com.tw/blog/110742/ 延伸閱讀：Grass-Fed Whey Protein vs. Regular Whey: Here’s What’s Best for You https://perfectketo.com/grass-fed-whey-protein/ 延伸閱讀：The “Grass-Fed” Milk Story: Understanding the Impact of Pasture Feeding on the Composition and Quality of Bovine Milk https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6723057/ 註釋清單：
*1 GRASS-FED VS. GRAIN-FED WHEY PROTEIN - HOW DO THEY COMPARE? https://www.transparentlabs.com/blogs/all/63992003 Grass-fed protein is indisputably superior to grain-fed protein on a nutritional level. The benefits of grass-fed come down to improved amino acid and immune support nutrients, as well as healthy omega and CLA fats. *2 Differences in whey protein content between cow's milk collected in late pasture and early indoor feeding season from conventional and organic farms in Poland https://onlinelibrary.wiley.com/doi/abs/10.1002/jsfa.5663 *3 Grass Fed Whey — What’s the Real Story? https://medium.com/@summerbanks/grass-fed-whey-whats-the-real-story-9cb894c445ba There’s research showing grass fed whey helps reduce inflammation, strengthen immunity; while encouraging healthy energy levels. |
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