In November 2024, the Singapore Food Agency warned people not to drink a berry drink made in Malaysia. It was sold as a fibre enzyme product. When the agency tested it, it found sennosides, a substance used to relieve constipation. Malay Mail reported that it could also cause stomach pain, diarrhoea and muscle weakness.

That case shows why the words "enzyme juice" deserve a closer look. The name sounds natural and healthy. But it can mean very different things, and the label does not always tell you what is inside.

This guide explains the difference between enzyme juice and fresh juice. It also covers what a drink label in Malaysia is allowed to claim, so you can check before you buy.

What people mean by "enzyme juice"

In Malaysia, the phrase is used in at least three ways.

1. Fermented fruit enzyme drinks

This is the meaning most home recipes use. Chopped fruit is left in a closed jar with sugar and water for weeks or months. Yeast and bacteria break the fruit down, and the liquid is strained off. Home recipes for this are shared widely online, and some are sold in bottles.

2. Bottled "enzyme" health drinks

These are sold as products for digestion, energy or "detox". They may be powders or ready-to-drink bottles. Some mix fruit, fibre and other added ingredients. The Singapore case above was one of these.

3. Fresh raw juice described as "enzyme-rich"

Some people use the phrase for fresh juice pressed from raw fruit and vegetables. Here, "enzyme" is a way of saying the juice is fresh and not heated.

These are three different drinks. Only the last one is simply fruit, pressed and poured.

How fresh juice is made

Fresh juice is fruit or vegetables pressed to release their liquid. Nothing is added and nothing is left to ferment. You drink it soon after making it.

A slow juicer presses the produce at low speed and separates the juice from the pulp. A blender keeps the pulp, which makes a thick drink rather than a juice. Our article on why blender juice is not the same as cold-pressed juice explains that difference.

The big advantage of fresh juice is that you know exactly what went in. If you pressed two oranges and a handful of greens, that is all it contains.

Fresh juice does not keep long. It changes colour and taste as it sits. Drink it soon after making it, or store it in a sealed bottle in the fridge and finish it the same day.

How enzyme juice differs from fresh juice

Fermentation changes a drink. Yeast feeds on the sugar, so a small amount of alcohol can form. If the jar is not clean, mould can grow. None of this happens with fresh juice you drink the same day.

What a drink label in Malaysia can claim

This is where the regulatory side matters.

According to the Ministry of Health's pharmacy service, drinks count as food in Malaysia. Food products do not need to be registered with the ministry. But they may not make medicinal claims, such as saying they treat or cure an illness.

Some products are part food and part medicine. For these, the drug regulator, NPRA, counts enzymes as an active ingredient. A product that makes a health or medical claim may be treated as a medicine rather than a food. Then it has to meet the stricter rules for medicines.

So if a bottle of enzyme juice promises to cure a problem, treat that as a warning sign.

How to check an enzyme drink before you buy

1. Read the ingredients list. Look for added sugar, sweeteners and anything you do not recognise.
2. Be wary of strong health claims. A food label may not claim to treat a disease.
3. Check who made it. A product with no maker's name or address is hard to trust.
4. Buy from a known seller. The Singapore case began with products sold on online platforms.
5. Stop if you feel unwell. If a drink gives you stomach pain or diarrhoea, stop drinking it and see a doctor.

Children and enzyme drinks

Be extra careful with children. The Ministry of Health's child dietary guideline says to avoid giving any fruit or vegetable juice to a child under one. After that, it limits 100% juice to less than half a cup a day. A fermented drink with added sugar is not a good fit for a young child. Our guide on juice and homemade food for babies explains the limits.

If you want juice you can trust

The simplest way to know what is in your juice is to make it yourself. Choose fruit that presses well, such as watermelon, pineapple or citrus. Our list of local fruits a slow juicer can handle is a good start.

Our juicer FAQ answers common questions about fresh juice at home. When you are ready, you can browse slow juicers for fresh juice that press fruit without heat or added ingredients.

If you make fermented enzyme drinks at home

Some families make their own fruit enzyme drink at home. If you do, a few habits make it safer.

Start with a clean jar. Wash it in hot soapy water and let it dry fully. Any old food or dirt in the jar gives mould a place to start.

Leave space at the top and open the lid now and then. Fermentation makes gas. A jar filled to the brim and sealed tight can build up pressure and leak or crack.

Look and smell before you drink. Fuzzy spots, a bad smell or a slimy layer mean the batch has gone wrong, so throw it away. But looks and smell cannot catch every problem, and a fermented drink can contain some alcohol. If you are unsure about a batch, do not drink it.

Remember the sugar too. Most recipes add a lot of sugar to feed the yeast. Some of it is used up, but not all. If you are watching your sugar, count this drink as a sweet one.

Why fresh juice does not need an enzyme label

All raw fruit and vegetables contain enzymes naturally. Pressing them without heat does not add anything. It simply leaves the fruit as it is and removes the pulp.

So a bottle that says "enzyme" is not telling you anything special about the fruit inside. What matters is the ingredients list, how the drink was made and whether the maker is named.

With fresh juice made at home, there is no label to read. You chose the fruit, and you watched it go in.

Frequently asked questions

What is enzyme juice?

In Malaysia, enzyme juice usually means a fermented drink made by leaving fruit with sugar and water for weeks. The phrase is also used for bottled health drinks and, sometimes, for fresh raw juice.

Is enzyme juice the same as fresh juice?

No. Fresh juice is fruit pressed and drunk soon after. A fermented enzyme drink is made with added sugar and left to ferment for weeks, which changes its taste and what it contains.

Is enzyme juice safe to drink?

It depends on how it was made and what is in it. Home fermentation can grow mould if the jar is not clean. In 2024, one bottled enzyme product made in Malaysia was found to contain a laxative substance.

Can an enzyme drink label claim to cure illness in Malaysia?

No. Drinks count as food, and food may not make medicinal claims. A product that makes medical claims may be regulated as a medicine instead.

Does fermented enzyme juice contain alcohol?

It can. Yeast turns some of the sugar into alcohol during fermentation. The amount depends on the recipe and how long it is left.

Can I give enzyme juice to my child?

The Ministry of Health advises no fruit or vegetable juice for children under one, and less than half a cup a day after that. A fermented drink with added sugar is best avoided for young children.