Useful drugs are made from inorganic substances or are plant and animal by-product.

有用的药物是由无机物质制成的，或者是植物和动物的副产品。

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Animal by-product organic fertilizer could release the nutrition slowly, which was in favor of the growth of plant.

动物源有机肥料可以缓慢释放植物所需养分，有利于植株的生长。

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Palm oil by-product is supplied as UK animal feed. Photograph: Getty

棕榈油副产品提供给英国作为动物食料。

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In my case, it began with a well-researched and supervised seven-day fruit and vegetable juice cleanse (during which time I weaned myself off caffeine), followed by an entirely plant-based nutrition program -- an animal-product-free regimen I have adhered to ever since.

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