The low carb craze is showing cracks in the armor. In another 6 or 9 months, it will just be seen as another fad diet (like low fat use to be).
The beauty of the play wasn't necessarily the increased demand from ex low carber's. It's the guaranteed price floor due to florida politics. Stocks never get that kind of a price floor.
In terms of coffee, supply and demand always look weakest near the bottom. It may get even more dire with long time coffee growers exiting the business in groves. Of course, that'd be the best time to go in.