Health

Salt, sodium and blood pressure: reading the label clearly

Compare like-for-like amounts and distinguish salt from sodium. Do not treat sudden swelling with food rules alone.

Salt next to aromatic herbs and lemon
Original conceptual illustration for the Avocado Journal, created with AI.

Sodium has essential roles in the body, but high intake can contribute to raised blood pressure. Much of the sodium in a diet may come from prepared foods, sauces and restaurant meals, not only salt added at the table. The exact pattern depends on where and what you eat.

Compare the same units

Check whether the label reports salt or sodium, and whether the amount is per serving or per 100 g. Comparing two different serving sizes can be misleading. Review the amount you actually use, especially for sauces and condiments.

Try a practical replacement

Use herbs, spices, garlic or citrus to add flavour, and reduce added salt gradually if that suits you. Check ready-made seasonings too: a different flavour does not necessarily mean less sodium.

Do not self-treat swelling

Short-term weight changes can include changes in fluid, but swelling has many possible causes. Drinking excessive water or adding potassium supplements is not a general solution. Kidney disease, heart conditions and some medicines make individual advice particularly important.

Source: WHO: sodium reduction.

00

Short answers

Questions about this article

Keep reading

All articles →