CBD Drink Side Effects: Are CBD Drinks Safe? UK Guide

CBD drinks are designed to be an easy, enjoyable way to try cannabidiol—but it is sensible to ask about CBD drink side effects before opening a can. Most healthy adults are not expected to experience serious harm when CBD foods are consumed in line with current UK guidance. However, CBD is an active ingredient: possible effects, medication interactions and total daily intake still matter.

This guide explains what UK shoppers should know, how INTUNE’s 10mg serving fits the current Food Standards Agency (FSA) advice, and what to check when comparing CBD drinks.

Quick answer: are CBD drinks safe?

For healthy adults, the FSA advises limiting CBD from all food and drink sources to 10mg per day. The agency says CBD foods consumed in line with this provisional acceptable daily intake should not cause serious harm to healthy adults. That is not the same as saying every product suits every person or that side effects are impossible.

Each INTUNE can contains 10mg CBD. One can therefore reaches the FSA’s recommended daily amount, so do not combine it with other CBD drinks, oils, gummies or supplements on the same day. Read our fuller guide to drinking CBD every day.

What are the possible CBD drink side effects?

People can respond differently to CBD. Possible effects discussed in official guidance and clinical research include:

• Drowsiness or tiredness: CBD can make some people feel sleepy. The FSA says consuming CBD in line with its 10mg-a-day advice should limit this exposure, but individual responses vary.
• Digestive effects: diarrhoea, nausea or stomach discomfort have been reported in studies of CBD, although much of the clinical evidence involves doses and products that differ from a 10mg food serving.
• Changes in appetite: some clinical research has reported reduced appetite.
• Medication interactions: CBD can interact with certain medicines because it can affect how the body processes them.
• Long-term concerns at higher lifetime intake: the FSA warns that consuming more CBD over a lifetime increases the likelihood of adverse effects, including liver damage or thyroid issues.

Evidence from medicinal or high-dose CBD cannot be applied directly to every low-dose CBD drink. It is still useful for understanding why serving size, frequency and medication warnings deserve attention.

Can CBD drinks make you sleepy?

They can make some people drowsy, although many people describe low-dose CBD drinks in terms of calm, focus or balance rather than sleepiness. Effects are personal and can be influenced by the dose, other products consumed, food, medication and individual sensitivity.

If a CBD drink makes you feel sleepy, dizzy or otherwise unwell, stop drinking it and do not drive or operate machinery. See our separate guide to CBD and driving in the UK.

CBD drinks and medication

The FSA does not recommend CBD for people taking medication unless it is used under medical direction. The interaction risk depends on the medicine involved, so a pharmacist, GP or other healthcare professional is better placed to advise on an individual combination.

Do not stop or change prescribed medication because of information in a blog article. Ask a healthcare professional before adding CBD to your routine.

Who should avoid CBD drinks?

Current FSA advice says the following groups should avoid CBD unless under medical direction:

• children and anyone under 18;
• people who are pregnant or breastfeeding;
• people trying to conceive;
• people taking medication;
• people with underlying health concerns who have been advised against CBD.

How much CBD should a CBD drink contain?

CBD drinks vary in strength, so always check the amount per can. The UK Food Standards Agency currently advises healthy adults to limit their total CBD intake from food and drinks to 10mg per day.

Every 250ml can of INTUNE contains 10mg of water-soluble CBD isolate. This provides a clearly measured serving that corresponds with the FSA’s current daily guidance: one can, once a day.

The guidance applies to total CBD consumed across the day, including drinks, oils, gummies and other CBD foods. People taking medication, anyone who is pregnant or breastfeeding, under-18s and people in other groups identified by the FSA should avoid CBD unless under medical direction.

CBD isolate was chosen for a clear, consistent serving without a broad cannabinoid profile. Learn more in our comparison of CBD isolate, broad-spectrum and full-spectrum CBD.

Can CBD drinks get you high?

CBD itself is non-intoxicating and does not produce the high associated with THC. However, the FSA notes that trace amounts of THC or other controlled cannabinoids can be present in some CBD foods, including products described as THC-free.

The FSA has set a safe upper limit of 0.07mg THC per day for a healthy adult. Its public guidance recommends checking both the product label and the CBD Public List before buying. Read our guide to whether CBD drinks are legal in the UK.

How to choose CBD drinks in the UK

A useful product check should cover more than flavour. Look for:

• a clearly stated CBD amount per can;
• clear daily-use instructions;
• an ingredients list and allergen information;
• a recognisable manufacturer or responsible food business;
• product details linked to the FSA CBD Public List process;
• straightforward information about the type of CBD used;
• a flavour and format you will genuinely enjoy.

INTUNE CBD sodas contain 10mg CBD per can and come in Grapefruit & Mint, Pomegranate & Ginger and Elderflower & Hops. Explore the INTUNE CBD drinks mixed pack, or see where to buy CBD drinks in the UK.

CBD drink side effects: frequently asked questions

What happens if I drink more than one CBD drink?

It depends on the amount in each drink and any other CBD products used that day. Because each INTUNE contains 10mg CBD, one can reaches the current FSA recommendation for a healthy adult. Do not have more than one INTUNE per day or combine it with other CBD products.

How long might CBD drink effects last?

Timing varies between people and products. Food, metabolism, serving size and individual sensitivity can all matter. Our guide to how long CBD drinks take to work explains the main factors.

Are CBD drinks safer than alcohol?

CBD drinks and alcoholic drinks affect the body differently, so a simple safety comparison can be misleading. INTUNE is alcohol-free and non-intoxicating, making it a useful grown-up option when you want the ritual and flavour of a proper drink without alcohol.

Should I drink CBD every day?

Some adults make CBD drinks part of a daily routine, but total intake remains important. Follow the FSA’s 10mg-per-day guidance and pay attention to how you feel.

The bottom line

CBD drink side effects are possible, even though many healthy adults tolerate low-dose CBD foods without serious problems. The most useful safeguards are simple: know the serving, keep track of total daily CBD, avoid it if you fall into an FSA vulnerable group, and choose transparent products.

INTUNE’s 10mg CBD sodas are built around one clearly labelled daily serving, bold botanical flavours and an alcohol-free ritual designed for moments of calm, focus and balance.

Sources checked September 2026: Food Standards Agency: CBD safety and health claims; FSA CBD guidance for England and Wales.