Blueberry

Vaccinium corymbosum · Heather family (Ericaceae)

Hi, I'm Blueberry! I'm small, round and blue — and I have a little crown on top!

Blueberry
Image: Aconcagua · CC BY-SA 3.0 · Wikimedia Commons

What does it help with?

  • Vitamins & good food

    Blueberries give you vitamin C, vitamin K and fiber The chewy part of plants that helps your tummy and poop move well..

    🟢 Scientists are sure

  • Heart & blood vessels

    In some tests, eating blueberries helped blood vessels work a bit better.

    🟡 Scientists think so

  • Brain & focus

    Scientists are testing if blueberries help memory. So far, the results are small and mixed.

    🟠 Still being studied

What do the colored dots mean?
  • 🟢 Scientists are sure Strong evidence (several good human trials)
  • 🟡 Scientists think so Some evidence (small human studies)
  • 🟠 Still being studied Early evidence (lab or animal studies only)
  • 🔵 Grandma's wisdom Traditional use (not scientifically confirmed)

How we grade evidence

Careful if…

For kids OK in normal food Pills, powders & oils: ask a grown-up first

Blueberries are a great snack. For babies and toddlers, squash them or cut them into halves or quarters so they can't choke.

Natural does not always mean safe. Always ask a grown-up before trying something new, and a doctor or pharmacist before taking any supplement. Try the safety check →

What is it?

Blueberries are small, round berries that grow on bushes. They are green at first. Then they turn deep blue when they are ripe.

They taste sweet and a little sour. You can eat them fresh, with yogurt or in pancakes. Morocco grows lots of blueberries too!

How people use it

In the kitchen

  • Eaten fresh, or with yogurt, oats and pancakes.
  • Baked into muffins or cooked into jam.

Fun facts

  1. Blueberries are one of the few foods that are naturally blue.

  2. Each blueberry has a little star-shaped crown on top.

  3. Their blue colour comes from natural colours that are also antioxidants Tiny bodyguards in food that protect your cells from getting damaged, a bit like rust protection for a bike..

  4. Morocco sends lots of its blueberries to Europe.

Grow it yourself

  • Medium
  • Lots of sun
  • Lots of water
  • Grows in a pot
  • About 2 to 3 years after planting a young bush
  1. Buy a young blueberry bush from a garden shop.
  2. Plant it in a big pot with soil made for acid-loving plants.
  3. Water it often, with rainwater if you can.
  4. Pick the berries when they are fully blue and come off easily.

💡 Blueberries need acid soil. In normal garden soil, their leaves can turn yellow.

Quiz time!

Answer 3 questions. Get 2 right to win this plant’s badge for your garden!

  1. What colour are blueberries before they are ripe?

  2. What is on top of each blueberry?

  3. How should you give blueberries to a toddler?

Your plant card

Print it, cut it out and collect them all!

Blueberry

Vaccinium corymbosum

Superpowers
Vitamins & good food Heart & blood vessels Brain & focus
Growing
⭐⭐

🤩 Blueberries are one of the few foods that are naturally blue.

supplementsmorocco.com

For grown-ups: science, amounts & safety

Tap to open

General information, not medical advice. Talk to a doctor or pharmacist before using any herbal supplement — especially during pregnancy or breastfeeding, for children, before surgery, or if you take medicines. Medical disclaimer

What the research says

Use Evidence Details
Vitamins & good food 🟢 Strong evidence (several good human trials) Per 100 g, raw blueberries provide 57 kcal, 2.4 g fibre, 9.7 mg vitamin C and 19.3 µg vitamin K[1].
Heart & blood vessels 🟡 Some evidence (small human studies) A 2024 meta-analysis (16 studies, 11 pooled) found blueberry intake improved endothelial function (flow-mediated dilation) and slightly lowered diastolic blood pressure, with no significant effect on systolic blood pressure or LDL/HDL cholesterol; results varied a lot between studies[2].
Brain & focus 🟠 Early evidence (lab or animal studies only) A 2023 systematic review found no significant effect of blueberry on mood or most attention tasks, with one working-memory measure improved; more high-quality trials are needed[3].

Nutrition (per 100 g of raw blueberries (about 2/3 of a cup))[1]

Energy 57 kcal
Carbohydrates 14.5 g
Sugars 10 g
Fiber 2.4 g
Protein 0.7 g
Vitamin C 9.7 mg
Vitamin E 0.6 mg
Vitamin K 19.3 µg

Names & identifiers

Scientific name
Vaccinium corymbosum
Also called
Highbush blueberry, Blueberries
Wikidata
Q468695

Sources

  1. Blueberries, raw (FDC ID 171711) USDA FoodData Central · Database
  2. Effect of blueberry intervention on endothelial function: a systematic review and meta-analysis Frontiers in Physiology · 2024 · Research review · PubMed
  3. The Potential Effect of Blueberry on Cognitive Health and Mood State based on Human Intervention Studies: Systematic Review and Mini Meta-Analysis CNS & Neurological Disorders – Drug Targets · 2023 · Research review · PubMed

✅ Reviewed by sm_owner on September 26, 2026.

Last updated September 26, 2026. How we write and check our pages

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