That white powder on blueberries is called "bloom," a natural, waxy coating the berry produces to protect itself from sun, moisture loss, pests, and bacteria, indicating it's fresh, ripe, and hasn't been overly handled or washed; it's completely safe to eat and actually helps them stay fresh longer.
Info below The "white stuff" on your blueberries is called bloom, a natural, waxy coating that protects the fruit from moisture loss, pests, and sun damage. Bloom is a sign of freshness and is perfectly safe to eat.
It's called the “bloom”—a natural wax that protects the berries and keeps them fresh.
Blueberries May Cause Digestive Issues
While blueberries are generally considered to be a healthy food, they can sometimes cause digestive issues like constipation or diarrhea. If you eat too many blueberries, you may experience stomach pain or cramping.
Fun fact, the white dust on the blueberries is actually called the bloom. It's produced naturally by the fruit itself to protect against intense sun and disease and it's 100% safe to eat and a sign of freshness.
What else could it be but mold or pesticides? The truth is, not all pale coatings on produce, such as blueberries, are something to avoid. Blueberries often have a waxy, white coating, and not only is it harmless, but it's actually a sign they are fresh.
Berries especially can develop a white coating on them that kind of looks like cotton or fuzz. A few moldy berries don't mean you have to throw out the whole batch. Dr. Rajapakse says to throw out the ones that look visibly moldy as well as any that might have been in direct contact.
Official Statements from Cardiology Organizations. The American Heart Association says to eat foods like blueberries. They are full of antioxidants. A diet rich in fruits, veggies, whole grains, and lean proteins can lower heart disease risk.
While there's no single "number one," blueberries are widely considered top contenders for the healthiest fruit due to their high antioxidants (anthocyanins) that boost brain, heart health, and reduce inflammation, with other berries, avocados, and oranges also ranking high for vitamins and healthy fats. The best approach is a varied intake of fruits, with berries, citrus, and nutrient-dense options like avocado providing broad benefits.
Blueberries are one of the healthiest fruits for you, especially as you age. Just one serving of blueberries can help you meet your daily fiber requirement, which is crucial for controlling blood sugar levels, maintaining proper bowel health and lowering cholesterol levels.
The WHITE stuff on BLUEBERRIES often mistaken for MOLD or a PESTICIDE residue, is actually called "BLOOM". This waxy layer helps shield the fruit from moisture loss and protects it from harmful bacteria and insects.
Risk of Blood Clots
If you take certain medications, it may be a bad idea to eat too many blueberries. Blueberries are high in vitamin K, so consuming a lot of them can increase your risk of blood clots if you take anticoagulants (aka blood thinners) such as heparin or warfarin.
"Blueberries should be washed because they [can] carry dirt, debris, bugs, parasites, and other contaminants," says Bryan Quoc Le, Ph. D., food scientist, food consultant, and author of 150 Food Science Questions Answered. These contaminants can also carry pathogens, which may cause foodborne illness.
As a rule of thumb, washing with water reduces dirt, germs, and pesticide residues remaining on fresh fruit and vegetable surfaces. Washing and rubbing produce under running water is better than dunking it. Wash fruits and vegetables from the farmers' market, your home garden, and the grocery store.
Eating citrus fruit regularly is thought to improve heart health since a diet high in citrus flavonoids – the plant compounds found in the likes of grapefruit – may help lower the risk of stroke. Grapefruit is also rich in potassium and fibre which help manage blood pressure. Discover the health benefits of grapefruit.
The least healthy fruit of all of the powerhouse fruits is the white grapefruit, according to the CDC. It scored 10.47 on the agency's ranking, compared to a perfect 100 for watercress.
Based on new research from the CDC, the top five nutrient-dense vegetables are:
Berries are fruits that help clear the blood vessels.
Fruits like strawberries and mulberries have a lot of flavonoid antioxidants, which help clear up plaque and prevent atherosclerosis.
Cardiologists generally advise avoiding processed meats, sugary drinks and sweets, and foods high in trans fats and sodium, like most fried foods and salty snacks, because they raise bad cholesterol, blood pressure, and inflammation, significantly increasing heart disease risk. Focusing on whole foods and limiting these culprits is key for heart health.
Epidemiological studies associate regular, moderate intake of blueberries and/or anthocyanins with reduced risk of cardiovascular disease, death, and type 2 diabetes, and with improved weight maintenance and neuroprotection. These findings are supported by biomarker-based evidence from human clinical studies.
So those little white worms in the TikToks? Most likely SWD larvae (a.k.a. maggots) that hatched in the berries and have spent their whole lives munching away at the flesh, according to Dr. Wallis.
However, no matter what type it is—black or white—mold is dangerous and can cause adverse health effects. Exposure to white mold can cause issues including allergies, headaches, respiratory infections or distress, dizziness, and nausea.
Rhagoletis mendax is a species of tephritid fruit fly known by the common name blueberry maggot. The blueberry maggot is closely related to the apple maggot (R. pomonella), a larger fruit fly in the same genus. It is a major pest of plant species in the Ericaceae family, such as blueberry, cranberry, and huckleberry.