Soylent sells its eponymous product as the perfect food replacement – a powdered drink mix claimed to provide all the sustenance your body needs to function. But acknowledging that there are plenty of people who are unable to function without their daily caffeine hit, Soylent has introduced a caffeinated version called Coffiest.

Coffiest is a bottle of Soylent drink 2.0, the latest iteration of the startup's complete nutrition solution, with 150 mg of added caffeine and 75 mg of L-theanine (an amino acid derived from tea leaves) along with a coffee flavor with just a hint of chocolate.

While the caffeine gives that familiar boost coffee fans know and love, the L-theanine is said to be relaxing without causing drowsiness; together the pair are designed to give an overall cognitive boost and reduce the "jitters" sometimes associated with caffeine.

Soylent says each bottle of Coffiest provides about a fifth of the body's daily requirement of vitamins and minerals, added to a base including soy protein and algal oil, among other sources. Each 434 ml bottle contains 400 calories total and the same amount of caffeine as a strong cup of coffee.

Alongside Coffiest, Soylent is also introducing a new nutritional bar that contains 250 calories and the same nutritional profile as the original drink mix. Each bar is claimed to provide about an eighth of an adult's daily dietary needs.

Coffiest is available for order online and delivery to the United States or Canada right now, with more countries promised soon. Without a subscription, the basic price of a bottle of Coffiest is US$3.25 in boxes of 12. Pricing and availability of the Soylent bar is yet to be announced.

Source: Soylent

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