A to Z of Superfoods

A

Almonds — A crunchy tree nut rich in vitamin E, an antioxidant that protects cells, plus magnesium and monounsaturated fats that support heart health. Their fibre and protein combination also helps keep blood sugar steady.

Avocado — A creamy fruit unusually high in healthy monounsaturated fat. Avocados are also a rich source of potassium (more per portion than a banana) and fibre, and they help the body absorb fat-soluble vitamins from other foods.

Açaí Berries — A deep-purple Amazonian berry with one of the highest antioxidant concentrations of any fruit, largely from anthocyanins. Açaí also provides healthy fats and fibre, though it’s often sold as a sweetened purée, so it’s worth checking the sugar content.

B

Beetroot — A vivid root vegetable rich in dietary nitrates, which the body converts into nitric oxide, a compound linked to improved blood flow and lower blood pressure. Beetroot also provides folate and manganese.

Blueberries — Small, deep-blue berries packed with anthocyanins, antioxidants linked to improved memory and reduced inflammation. They’re a good source of vitamin C and fibre while being low in calories.

Broccoli — A cruciferous vegetable rich in sulforaphane, a compound studied for its role in supporting the body’s natural detoxification processes. It’s also an excellent source of vitamin C, vitamin K, and fibre.

C

Cacao — The raw, unprocessed form of chocolate, richer in flavanol antioxidants than most cocoa powders or chocolate bars. Cacao also provides iron, magnesium, and mood-supporting compounds, though it’s naturally bitter without added sugar.

Chia Seeds — Tiny seeds that swell into a gel when soaked. Chia is one of the best plant sources of omega-3 fatty acids and is rich in fibre and plant protein, supporting digestion and steady blood sugar.

Courgette — A mild summer squash that’s low in calories but rich in water and nutrients. Courgette provides vitamin C, potassium, and antioxidants like lutein, and its water and fibre content support hydration and digestion.

D

Dark Chocolate — Chocolate with a high cocoa content (70%+) delivers flavanols, antioxidants linked to improved blood flow and lower blood pressure, along with iron, magnesium, and copper. The benefits diminish with added sugar and milk.

Dates — A naturally sweet dried fruit that provides fibre, potassium, and antioxidants alongside its sugars, making them a more nutrient-dense alternative to refined sweets.

E

Edamame — Young, green soybeans, usually served steamed. Edamame is a complete plant protein, containing all nine essential amino acids, and it’s rich in fibre, folate, and vitamin K.

Eggs — A nutrient-dense whole food containing complete protein and choline, a nutrient important for brain health that many diets fall short on. Eggs also provide vitamin D, B12, and antioxidants (lutein and zeaxanthin) that support eye health.

F

Figs — A soft, sweet fruit (fresh or dried) rich in fibre, potassium, and calcium, unusual for a fruit. Figs also contain antioxidant polyphenols that support digestive health.

Flaxseed — Small seeds and one of the best plant sources of omega-3 fatty acids. Flaxseed also contains lignans, compounds with antioxidant and hormone-balancing properties, and a good dose of fibre. Grinding the seeds improves nutrient absorption.

G

Garlic — A pungent bulb containing allicin, a sulphur compound formed when it’s crushed or chopped, studied for its effects on cholesterol, blood pressure, and immune function. It’s also a source of manganese and vitamin B6.

Ginger — A spicy root used fresh, dried, or as tea, valued for gingerol, a compound with anti-inflammatory and anti-nausea properties. Ginger is also a mild source of antioxidants and supports digestion.

Goji Berries — Small, red dried berries used in traditional Chinese medicine, rich in vitamin A, vitamin C, and zeaxanthin, an antioxidant that supports eye health.

H

Hemp Seeds — Nutty, soft seeds providing a rare balance of omega-3 and omega-6 fats alongside complete protein and minerals like magnesium, zinc, and iron.

Honey (Manuka) — A dark, dense honey from New Zealand, distinguished by methylglyoxal, a compound linked to antibacterial properties not found in ordinary honey. Like all honey, it should be used in moderation given its sugar content.

I

Indian Gooseberry (Amla) — A small, sour green fruit central to Ayurvedic tradition. Amla has one of the highest natural vitamin C concentrations of any fruit, supporting immune function and collagen production, alongside antioxidant polyphenols.

J

Jackfruit — A large tropical fruit with fibrous flesh when unripe (used as a meat substitute) and sweet flesh when ripe. Jackfruit is a good source of fibre, potassium, and vitamin C.

K

Kale — A hardy leafy green exceptionally high in vitamin K, vitamin A, and vitamin C, along with antioxidants like quercetin that help fight cellular damage.

Kefir — A fermented milk drink containing a wider range of probiotic bacteria and yeasts than most yoghurts, supporting gut health. It also provides calcium, protein, and vitamin B12.

Kiwi — A small fruit with more vitamin C per portion than an orange, plus fibre and actinidin, an enzyme that aids protein digestion.

L

Lemon — A citrus fruit high in vitamin C and plant compounds called flavonoids, which have antioxidant properties. Lemon juice or zest is often used to add flavour without extra salt or sugar.

Lentils — Small legumes rich in plant protein and fibre, along with folate and iron. Their fibre content slows digestion, helping to stabilise blood sugar and support heart health.

M

Mackerel — An oily fish rich in omega-3 fatty acids, which support heart and brain health, along with vitamin D and B12. It’s also lower in mercury than larger predatory fish.

Matcha — A finely ground powder of specially grown green tea leaves. Because the whole leaf is consumed, matcha delivers a concentrated dose of catechins, antioxidants linked to metabolic and cardiovascular benefits, with a gentler caffeine lift than coffee.

Mushrooms (Shiitake) — A savoury fungus providing beta-glucans, fibres studied for their immune-supporting effects, along with B vitamins and one of the few natural plant-based sources of vitamin D when exposed to sunlight.

N

Nori (Seaweed) — The dried seaweed used to wrap sushi, one of the few plant sources of vitamin B12. It also provides iodine, which supports thyroid function, and trace minerals from the sea.

Nutritional Yeast — A deactivated yeast with a savoury, cheesy flavour, often fortified with B vitamins including B12, making it especially useful in plant-based diets. It also provides some protein and fibre.

O

Oats — A wholegrain best known for its soluble fibre, beta-glucan, shown to help lower LDL cholesterol. Oats also provide plant protein and unique antioxidants called avenanthramides.

Oranges — A classic source of vitamin C, supporting immune function and skin health, along with fibre and folate.

P

Pomegranate — A fruit filled with juicy, ruby-red seeds rich in punicalagins, powerful antioxidants that give the fruit its anti-inflammatory reputation, along with vitamin C and fibre.

Pumpkin Seeds — Small, flat seeds rich in magnesium, zinc, and plant protein. Their zinc content in particular supports immune function and skin health.

Q

Quinoa — A seed typically prepared like a grain, originally cultivated in the Andes. Quinoa is a complete protein, containing all nine essential amino acids, and is also a good source of fibre, magnesium, and iron.

R

Raspberries — A tart berry with one of the highest fibre contents of any fruit, around 8 grams per cup. Raspberries also provide vitamin C and ellagic acid, an antioxidant studied for anti-inflammatory effects.

Rocket — A peppery salad leaf rich in nitrates, which support blood flow, along with vitamin K and antioxidant plant compounds.

S

Salmon — An oily fish rich in omega-3 fatty acids, which support heart and brain health, plus high-quality protein, vitamin D, and B12. Wild and farmed salmon both offer strong omega-3 levels, though ratios vary.

Spinach — A nutritional workhorse leafy green loaded with iron, vitamin K, vitamin A, and folate, plus lutein and zeaxanthin, antioxidants that support eye health. Its high nitrate content is also linked to improved blood flow.

Spirulina — A blue-green algae that is one of the most protein-dense whole foods available, alongside iron, B vitamins, and phycocyanin, a pigment-antioxidant unique to algae. It’s typically consumed as a powder or supplement.

Sweet Potato — An orange-fleshed root vegetable exceptionally high in beta-carotene, which the body converts to vitamin A, supporting eye and immune health, along with fibre and potassium.

T

Tomatoes — A fruit (culinarily treated as a vegetable) rich in lycopene, an antioxidant linked to heart health, particularly when tomatoes are cooked, which increases its availability.

Turmeric — A golden-orange root known for curcumin, its active compound, which has well-documented anti-inflammatory and antioxidant properties. It’s best absorbed when paired with black pepper and a source of fat.

U

Ube (Purple Yam) — A vividly purple tuber popular in Filipino cuisine, rich in complex carbohydrates for sustained energy, along with anthocyanins (the same antioxidant family found in blueberries) and vitamin C.

V

Venison — A lean game meat, lower in fat than most beef, providing high-quality protein, iron, and vitamin B12, useful for supporting energy levels and muscle maintenance.

W

Walnuts — A tree nut that stands out among nuts for its omega-3 fatty acid content. Walnuts also provide protein, fibre, and antioxidants concentrated in their thin brown skin, and are linked to brain and heart health.

Watercress — A peppery aquatic leafy green often cited as one of the most nutrient-dense vegetables by nutrient density per calorie, rich in vitamin K, vitamin C, and antioxidant compounds.

X

Extra Virgin Olive Oil — The least processed form of olive oil, rich in monounsaturated fat and polyphenol antioxidants that support heart health and help reduce inflammation. It’s the cornerstone fat of the Mediterranean diet.

Y

Yoghurt (Greek) — A strained, protein-dense dairy product delivering roughly double the protein of regular yoghurt, along with live probiotic cultures that support gut health, plus calcium and vitamin B12.

Z

Ziziphus (Jujube) — Also known as the Chinese date, this small fruit is used fresh or dried and is notably rich in vitamin C and antioxidant compounds, along with fibre.