Powder vs tablet electrolytes: Which is better?

1. What are electrolytes?

Electrolytes are minerals with an electrical charge, such as sodium, potassium, magnesium and chloride. They occur naturally in food and are involved in many processes in the body, such as:

• Fluid balance
• Muscle function
• Nerve function and psychological function
• Blood pressure

2. Why do people drink electrolyte water?

You get electrolytes from your diet, but in some situations it can be useful to top them up in a targeted way. Think of athletes, people who fast, sweat a lot or follow a ketogenic diet. In those cases, people often choose electrolyte water: water in which electrolytes are dissolved.

3. How do you make electrolyte water?

You can make electrolyte water in two ways:

• Mix it yourself with individual minerals such as magnesium citrate, potassium citrate or sodium chloride. This is the cheapest way to make unflavoured electrolyte water. It does, however, require buying the minerals you want and measuring accurately.
• Ready-to-use supplements, such as:
  • Tablet electrolytes: dissolve fizzingly in water.
  • Powder electrolytes: dissolve in water, often per scoop or sachet.

4. Pros and cons of tablet electrolytes

How they’re offered

Tablet electrolytes are always effervescent tablets. They come in a tightly sealed tube. That’s necessary to prevent the tablets from absorbing moisture.

Advantages

Tablet electrolytes are popular for their ease of use: you put a tablet in a glass of water and it dissolves quickly. The dose is fixed, so no measuring. No messing about with powders.

Disadvantages

• For the fizzing effect you always need a combination of a mild acid and a base. As the base, bicarbonate or carbonate compounds are usually used, such as:
  • The technical excipient sodium bicarbonate (also known as baking soda or sodium hydrogen carbonate).
  • Potassium bicarbonate
  • Calcium carbonate
  • Magnesium carbonate
• Cheap and functional, but not well-absorbed mineral forms.
• Additional excipients are needed for firmness, processability and stability, such as binders, fillers, anti-caking agents and/or lubricants (flow agents).
• Not convenient to carry a loose tablet, as it quickly absorbs moisture.

5. Pros and cons of powder electrolytes

How they’re offered

In a tub with a scoop or in portion sachets (sticks/sachets).

Advantages

• Easy to dissolve in water (stir or shake)
• Dosage easy to adjust
• Portion sachets/sticks are convenient on the go
• No baking soda, binders, fillers, anti-caking agents and/or lubricants required
• Room for well-absorbed forms of minerals, such as:
  • Magnesium citrate
  • Potassium citrate
  • Sodium from sea salt

6. Powder electrolytes or tablet electrolytes – what suits you best?

Choose tablet electrolytes if you want fizzy electrolyte water, have no issue with added excipients and want to avoid powders.

Choose powder electrolytes if you want as few additives as possible and flexibility in dosing.

Comparison table