How much caffeine is in Liquid POWER?

78mg natural caffeine per can, from guarana and coffee — around a cup of filter coffee.

What is the healthiest energy drink?

There's no official ranking; look for moderate caffeine, low sugar, few sweeteners and ingredients you recognise.

Is there a caffeine-free option?

Yes — the FOCUS can is caffeine free, with Lion's Mane, Ginseng and Vitamin B12.

The buyer's checklist · Last updated 7 October 2026

Healthy energy drinks UK: what to check on the can

What are the healthiest energy drinks in the UK?

The short answer

"Healthy energy drink" usually means moderate caffeine, low sugar, and ingredients you can name. Check the caffeine per can (UK cans above 150mg/l carry a high-caffeine warning), sugar per 100ml, sweeteners, and whether vitamins carry approved claims. Grass & Co. Liquid POWER is ginger and lime with 78mg natural caffeine from guarana and coffee, 1,000mg Shiitake extract, Holy Basil and Vitamins C, B6 and B12, low in sugar. It is still a high-caffeine drink and not for children or during pregnancy.

Four checks on an energy drink can

Four checks on an energy drink can
Check	Healthier sign	Watch out
Caffeine	Under ~100mg per can, natural source	160mg+ or stacked stimulants
Sugar	Low sugar (under 5g/100ml)	Full-sugar cans, 10g+/100ml
Sweeteners	Few or none	Several artificial sweeteners
Vitamins	Approved claims stated	Mega-doses with no explanation

The trade-offs

Grass & Co. Liquid POWER

78mg natural caffeine — about a cup of coffee
Low sugar, vegan, Shiitake and Holy Basil
Vitamins C, B6, B12 support energy-yielding metabolism

Still high caffeine (31mg/100ml)
Pricier than mainstream cans

Mainstream energy drinks

Cheap, everywhere
Stronger kick if you want it

Often more caffeine and sugar or sweeteners

The verdict

There's no health halo on caffeine, but moderate natural caffeine, low sugar and named ingredients is the sensible end of the aisle. That is where Liquid POWER sits.

Where Grass & Co. loses

On price, mainstream cans win easily, and if you want maximum stimulation, higher-caffeine drinks deliver more. If you want no caffeine at all, POWER isn't it — try the FOCUS can.

Mentioned in this piece

Questions people ask

How much caffeine is in Liquid POWER?: 78mg natural caffeine per can, from guarana and coffee — around a cup of filter coffee.
What is the healthiest energy drink?: There's no official ranking; look for moderate caffeine, low sugar, few sweeteners and ingredients you recognise.
Is there a caffeine-free option?: Yes — the FOCUS can is caffeine free, with Lion's Mane, Ginseng and Vitamin B12.

More comparisons

Grass & Co. products are food supplements and are not intended to diagnose, treat, cure or prevent any disease. Do not exceed the stated dose. Most products are for adults; CBD is for adults only.