British plant-based beverage brand Plenish has launched a new product, Plenish Enriched Oat M*lk, which combines essential nutrients with a short, natural ingredients list.
Claimed to be the UK’s only clean-label fortified oat milk without oils or additives, the product contains just three base ingredients — oats, water, and salt. It provides fibre without added sugar and is fortified with calcium, vitamin D, B12, riboflavin, and iodine.
The new milk alternative launched at Tesco stores UK-wide on March 3 and will arrive at Waitrose on April 28, followed by Ocado and Amazon.
Plenish has also recently reformulated its original Oat M*lk with a new creamy recipe, which has already begun rolling out at Waitrose, Sainsbury’s, Morrisons, Co-op, and Tesco.

“Dedicated to being transparent”
Plenish was founded in 2012 and offers a range of cold-pressed juices, shots, and plant-based milks. In 2021, the business was acquired by soft drinks company Britvic, the owner of major brands such as Fruit Shoot, Robinsons, Tango, and J2O.
The acquisition marked Britvic’s first foray into the milk alternatives sector, and has reportedly helped to make Plenish the UK’s fastest-growing dairy alternatives brand.*
“At Plenish, we’re committed to providing retailers with the plant-based options that today’s consumers demand, while also remaining dedicated to being transparent with our ingredients,” said Russell Goldman, Managing Director, Breakthrough Brands, at Carlsberg Britvic. “As consumers increasingly seek transparency and nutritious, minimally processed foods, we’re proud to help retailers meet these needs. By prioritising taste, quality, and nutritional value, we’re confident that Plenish will continue driving growth in the plant-based drinks category.”
*NielsenIQ RMS, Total Coverage, Dairy Alternatives exc. RTD & Flavoured & Private Label (as defined by Carlsberg Britvic) Value Sales Data, L52W to 25.01.25