Sodium

Sodium is an essential mineral and electrolyte that the human body needs in relatively small amounts. Although sodium is often discussed mainly in connection with salt and high-sodium diets, sodium itself performs several important functions in the body.

The goal is not to eliminate sodium. The goal is balance.

Sodium works closely with other electrolytes, particularly potassium, to help maintain fluid balance, nerve communication and normal muscle function.

Why Sodium Matters

Fluid Balance

Sodium helps regulate the movement and balance of water inside and outside our cells. This contributes to maintaining normal fluid and blood volume.

Nerve Function

Our nerves depend on sodium and potassium moving across cell membranes to generate electrical signals.

These signals allow the brain, nerves and other parts of the body to communicate.

Muscle Function

Sodium contributes to the electrical processes involved in normal muscle contraction and relaxation.

Electrolyte Balance

Sodium is one of the body's major electrolytes. It works alongside potassium, chloride, magnesium and calcium as part of the body's complex system for maintaining normal cellular function.

Sodium: Balance Matters

Sodium deficiency from diet alone is uncommon for most people eating a typical Canadian diet.

For many people, the greater concern is consuming too much sodium, particularly from processed foods, restaurant meals, sauces, cured meats, snack foods and foods containing substantial amounts of added salt.

Naturally occurring sodium in whole plant foods is generally much lower than the amounts found in heavily salted or processed foods.

This creates an important distinction:

A plant being listed in this Sodium Wellness Profile does not mean it is a high-sodium food.

The plants below are included because sodium occurs naturally within their mineral composition.

Ontario Plants

Dandelion — Taraxacum officinale

Dandelion is a familiar plant throughout Ontario. Its leaves can be harvested while allowing the established plant to continue growing.

Dandelion is also suitable for containers and small-space growing, making it useful for exploring nutrition beyond Ontario's traditional outdoor growing season.

Broadleaf Plantain — Plantago major

Broadleaf plantain is commonly encountered in Ontario and has a long history of traditional use.

Young leaves can be used as edible greens when the plant is correctly identified and harvested from a clean, appropriate location.

Narrowleaf Plantain — Plantago lanceolata

Narrowleaf plantain is another familiar Plantago species found throughout Ontario.

Its narrower leaves make it easy to distinguish from broadleaf plantain once you become familiar with the two species.

Mullein — Verbascum thapsus

Mullein is easily recognized by its large, soft and heavily textured leaves.

The fine hairs covering the leaves can irritate the mouth and throat, so mullein should not simply be treated as an ordinary salad green. Proper identification, preparation and intended use are important.

Plants Easily Grown Indoors Year-Round

Sweet Basil — Ocimum basilicum

Sweet basil is particularly well suited to indoor growing.

It can be grown in containers or hydroponically with sufficient light, warmth and nutrients, while regular harvesting can encourage continued growth.

Peppermint — Mentha × piperita

Peppermint can adapt well to containers and indoor hydroponic growing.

Its vigorous growth can provide repeated harvests throughout the year when appropriate growing conditions are maintained.

Hot Peppers — Capsicum annuum

Many hot pepper varieties can be grown indoors throughout the year with adequate lighting, warmth and growing space.

Growing peppers indoors can extend production far beyond Ontario's normal outdoor growing season.

Carolina Reaper — Capsicum chinense

Carolina Reaper is a cultivated Capsicum chinense pepper that can also be maintained indoors under appropriate growing conditions.

Its extreme heat means very small quantities may be sufficient when it is used as food, and careful handling is important.

Growing Plants and Mineral Content

Plants do not manufacture minerals from nothing. They obtain mineral elements from their growing environment.

The amount present in a particular plant can therefore vary depending on:

• soil or hydroponic nutrient composition
• water
• environmental conditions
• plant variety
• plant age
• plant part harvested
• growing method

This means two plants of the same species will not necessarily contain exactly the same concentration of sodium.

This is particularly relevant when growing plants hydroponically because the grower has greater control over the nutrient solution available to the roots.

A Small Mineral With an Essential Role

Sodium is a good example of why nutrition is about balance rather than simply getting more of everything.

Our bodies require sodium for fluid regulation, nerve signalling and muscle function, but most people do not need to deliberately seek high-sodium foods.

Growing fresh herbs, greens and other edible plants can instead contribute to a varied diet containing many different vitamins, minerals and naturally occurring plant compounds while giving us greater control over how much salt is added during food preparation.

Learning what is naturally present in the plants around us—and what we can grow ourselves—is another way to make more informed choices about nutrition, health and wellness.

Disclaimer

The Wellness Profiles are provided for general educational and informational purposes only. They are not medical advice and are not intended to diagnose, treat, cure or prevent any disease or medical condition.

Nutrient levels in plants can vary substantially according to species, variety, growing conditions, soil or nutrient solution, harvesting, storage and preparation. The presence of sodium in a plant does not necessarily mean that it is a significant dietary source.

People who have been advised to restrict or carefully manage sodium or fluid intake should follow the guidance of their physician, registered dietitian or other qualified healthcare professional.

Always correctly identify wild plants before consuming them, harvest only from clean and appropriate locations, and research safe preparation and potential medication interactions before using unfamiliar plants as food or herbal preparations.