Popular UK Electrolyte Brands Compared

What About the “Other” Ingredients?

Most products include more than just electrolytes. Let’s break down what some of those extras are and whether they’re really needed:

• Citric Acid: A food additive used for tartness and preservation. Generally safe, but unnecessary unless for taste. I usually stay clear of all food additives, but citric acid has been found to improve the absorption of minerals so potentially a good thing in this instance.
• Stevia: In an ideal world you wouldn't use any sweeteners, but Stevia is one of the only ones here that I would say are fine to have if you have to have something.
• Sucralose/Acesulfame-K/Aspartame: Non-nutritive sweeteners are better off avoided. These are calorie-free but controversial. Some people report bloating or digestive issues and some studies show negative effects on insulin sensitivity, also consumption correlates with with obesity. There is some evidence they are carcinogenic to humans and cause hormonal disruption when consumed in large amounts. Even if you are not having large amounts, why would you want to be eating small amounts that could add up over time?
• Maltodextrin: A carb-based highly processed thickener/filler. Can spike blood sugars and has been associated with an increased risk of disease. Only use if and when you are doing endurance events or trying to put on weight. But even then, there are better sources of energy than this in real food.
• Firming Agent (Sorbitols): Sorbitol is a sugar alcohol sweetener which are the type of sweeteners I prefer if you have to use one. Although it can have a laxative effect.
• Leucine: An essential amino acid which plays a crucial role in muscle protein synthesis and can help prevent muscle breakdown. Leucine also contributes to energy metabolism, including glucose uptake and fatty acid oxidation. So this is actually a really positive additional ingredient when you are doing sport.
• Natural Flavours / Artificial Flavourings: Used to improve taste. These are highly processed and often proprietary, even when they say natural. Ideally aim to avoid as you have no idea what is actually in them.
• Inulin: A prebiotic fibre. May aid gut health as it provides good food for you good gut bacteria, but could cause bloating in sensitive individuals who are not used to it.
• L-Carnitine & Green Tea: Found in some higher-end formulas like Rejuvenated H3O. These are marketed as energy/metabolism boosters but not necessary for hydration.
• Glucose: Usually I would say avoid glucose, but if you are being active/doing some endurance exercise this is the one time where I'd say go for it as it will instantly raise your bloody sugars and give you energy. But if you are just dehydrated because it is hot, you might want to avoid glucose as an ingredient, as it is inflammatory and may lead to weight gain if you are sedentary.
• Trans Resveratrol: a potent antioxidant which is considered to be more powerful than Vitamin C, E and beta carotene. It helps to support health at a cellular level.
• Anti-caking Agent (Polythene Glycol): is a synthetic compound used in food and supplements to prevent clumping and help powders flow more easily. Again not an ideal ingredient. 
• Hyaluronic Acid: is a naturally occurring substance in your body — especially in skin, joints, and connective tissues — where it helps retain moisture, cushion joints, and support healing.
• Acacia Gum: A thickener, stabiliser and emulsifier. Also called E414. Although approved by the European Food Safety Authority I personally prefer to stay away from any food additive as evidence is slowly coming through on the negative effects on peoples gut health.

As a wellness coach, I tend to recommend keeping things simple. If you're using electrolytes regularly, ideally choose a blend with the fewest unnecessary additives, which will mean you are less likely you are to deal with bloating, gut bacterial issues, sugar cravings, or water retention. And actually, you can see from the table that coconut water is a great option.

Final Thoughts

Electrolytes are essential to optimal hydration and wellbeing. But not all supplements are created equal. Focus on quality over quantity. Look for products with effective doses of sodium, potassium, and magnesium, and be cautious of excessive fillers and sweeteners.

If you’re struggling with low energy, bloating, or struggling to rehydrate, a clean electrolyte supplement might be just what you need.

Let me know if you want help finding the right one for your lifestyle—or advice on how to tweak your diet naturally to improve your electrolyte balance.