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Alongside the ever-growing popularity of the plant-based diet, there’s been something of a resurgence of interest in recent times concerning the availability of alternatives to meat and dairy foods, especially those groups which include plant-based dairy products, including soya, oat, almond and coconut plant-based drinks, and, not forgetting, those plant-based oils and spreads made from them.

Comments  
anonymousAlongside

It seems to me that it's within and not alongside. Perhaps you mean "With the ever-growing popularity …."

anonymousconcerning the availability of alternatives

in alternatives

anonymous especially those groups which include plant-based dairy products, including

especially plant-based dairy products like

anonymousplant-based drinks, and, not forgetting, those

drinks and the (of course they are plant-based since they are from the plants you just named, and you already said they were, anyway)

anonymousplant-based oils and spreads made from them

oils and spreads made from those same plants. ("them" would be the drinks)