Have you tried butter coffee? It’s supposed to help with energy and focus. It apparently gives you a buzz that lasts six hours, but without the acidity of normal coffee. It can also apparently help some people lose weight. The new craze comes from the mind of Silicon Valley entrepreneur Dave Asprey, a business self-help guru, who became an advocate for buttered coffee after drinking tea that was mixed with Yak fat while hiking in Tibet. Asprey felt “rejuvenated” by the drink–he ended up climbing a tall mountain–and went on to market Bulletproof Coffee, a brand that blends coffee with butter and “MCT oil,” which is found in coconuts. Is Asprey starting another silly health craze, or has he actually managed to build a better coffee? You can read more info on butter coffee here.