Long considered a staple food in the Far East, seaweed and algae may finally be making gains in Europe with consumers eager to sample a nutritionally superior food with strong sustainable qualities.

Despite significant headwinds generated by the escalating war on sugar and increasing consumer preferences for healthy products, the confectionery industry is holding its own with sales climbing 1.2% in the last year to reach a whopping $25 billion, according to market research from IRI.

The UK has announced a tax on sugar-sweetened beverages. But how hard will it hit the industry? How effective will the tax be at tackling childhood obesity? And could the tax be extended to other food categories? We take a look at the big questions surrounding the tax.