You know how it is. A chilly morning rolls round, your throat feels a bit scratchy, and your hand automatically reaches into the cupboard for a remedy. But instead of a big, hard-to-swallow tablet, you pull out a fragrant orange-flavoured jelly sweet or a refreshing lozenge. It tastes great. So, an hour later at your computer, you have another one. And another in the afternoon – after all, it’s ‘just a vitamin to boost your immunity’.
It is precisely this pleasant taste, however, that hides an insidious trap. Jelly and chewable forms of dietary supplements blur the line between a sweet treat and a concentrated dose of active ingredients. And whilst your body will simply tolerate an excess of vitamin C, problems can quickly arise with minerals such as zinc.
A psychological trick
Why do we tend to overlook these vitamins and exceed the recommended dose? The answer is simple: the sensory experience.
A standard tablet tastes bitter and powdery, and the brain perceives it as a medicine. A gummy bear or a sweet lozenge, however, activate the reward centres in the same way as ordinary sweets. Manufacturers make them tasty on purpose – so that we’ll enjoy taking them.
The problem arises when we forget that each sweet treat contains a precisely measured amount of biologically active substances. If we start eating them ‘just for the taste of it’, we lose track of the dosage.
Watch out for zinc
Zinc is very commonly found in lozenges and jellies, particularly in the popular combination with vitamin C. It supports the immune system, aids the healing of mucous membranes and shortens the duration of a cold. However, there is one major catch. The body cannot simply ‘flush it out’ when it has too much of it.
Whilst vitamin C is water-soluble and any excess is excreted in the urine without any major problems, zinc is a mineral. The body has a precisely defined upper safe limit for daily intake (known as the Tolerable Upper Intake Level):
For adults, a safe upper limit is approximately 25 to 40 mg of zinc per day (including that from the normal diet).
For children, this limit is considerably lower – often just 7 to 15 mg a day, depending on their age.
What does an overdose look like in practice?
A standard lozenge often contains 10 to 15 mg of zinc. If you take three lozenges a day, along with a morning multivitamin and a protein-rich lunch (e.g. beef, pulses or pumpkin seeds), you’ll easily exceed the safe limit.
What happens next?
1. Acute reaction: A metallic taste in the mouth, nausea, an upset stomach, abdominal cramps or diarrhoea.
2. Long-term risks (chronic excess): If you carry on like this throughout the winter, the excess zinc in your body will start to block the absorption of other vital minerals – particularly copper and iron. This can result in anaemia, chronic fatigue and, paradoxically, a weakened immune system. In other words, the exact opposite of what you set out to achieve.
Children and jelly-based dietary supplements
Even greater caution is required when it comes to children. Jelly vitamins look exactly the same as ordinary sweets from the shop.
If you leave a bottle with eye-catching packaging within easy reach on the table, a child could easily eat half the packet, thinking they’ve found a lovely treat. However, for a small child weighing 15 or 20 kg, even a few extra sweets mean a massive excess of the safe daily intake of fat-soluble vitamins and minerals (A, D, E, K).
4 rules for enjoying the flavour without exceeding the recommended dose
Chewable tablets and vitamin jellies shouldn’t be dismissed – they’re a brilliant solution for anyone who doesn’t like swallowing large capsules. You just need to stick to four principles:
1. Read the back, not the front: The back will tell you how many milligrams of zinc and vitamins you’re actually getting in a single tablet.
2. One serving is enough: Treat them as part of your morning routine, sticking to a specific number (e.g. 1 jelly a day). Don’t keep the tub on your desk next to your keyboard.
3. If you need something to suck on, go for plain herbal sweets: If you have a sore throat and want something to suck on all day, opt for plain sage or menthol lozenges with no added minerals or vitamins.
4. Keep them out of children’s sight, just as you would medicines: they should be stored in a locked cupboard, out of reach of children. And make it clear at home: “This isn’t a sweet, it’s a vitamin.”
Dietary supplements in tasty forms are a brilliant invention, but their form must not lull us into a false sense of security. The line between benefit and unnecessary burden often lies not in the substance itself, but in its quantity. With chewable vitamins or jelly sweets, this line is particularly fine, as they taste great, look tempting and seem harmless. Do one small thing for yourself today: turn the packet over, check the figures and stick to the recommended dosage. Your liver, stomach and immune system will thank you far more than if you were to overload them with a triple dose.
