Are Blackberries Good for Weight Loss?

Yes, blackberries can support weight loss when they replace higher-calorie foods in an overall calorie-conscious eating pattern, because their fiber and relatively low calorie density can help make meals satisfying.

They are not a weight-loss treatment, and eating them alone will not guarantee a change on the scale. For a broader approach, see the best foods for weight loss.

Can blackberries help with weight loss?

Blackberries can be a useful choice if they help you maintain an eating pattern that provides fewer calories than your body uses over time. Their value is practical: they add sweetness, flavor and fiber without many calories compared with some other sweet foods.

What matters is how they fit into your overall diet. Adding blackberries to what you already eat will not necessarily lead to weight loss, but using them in place of a higher-calorie snack or dessert may help reduce your intake. You do not need to eat them every day to benefit from a balanced diet.

How might blackberries support weight loss?

Raw blackberries contain about 43 kcal and 5 g of fiber per 100 g. Fiber adds bulk to food and can help you feel full, although how satisfying a meal is also depends on its other ingredients and your individual appetite.

Blackberries also contain a lot of water, which contributes to their relatively low calorie density. That means they provide a useful volume of food for their calories. Eating whole blackberries is the simplest way to get their fiber; straining or infusing them into water leaves much of the fruit behind.

There is no need to treat blackberries as a special fat-burning food. An eating pattern you enjoy and can maintain is more useful for weight management than relying on any single ingredient.

What does the evidence say about blackberries and weight loss?

Direct evidence that blackberries cause weight loss is limited. In a 2018 randomized crossover trial, 27 men with overweight or obesity were enrolled to receive either blackberries or a calorie- and carbohydrate-matched gelatin control as part of a controlled high-fat diet. Each treatment period lasted 7 days.

The blackberry treatment increased measured fat oxidation, meaning the participants used more fat as a fuel under the study conditions. That is not the same as demonstrating a lasting reduction in body fat or showing that blackberries cause weight loss over time.

The trial used 600 g of blackberries per day, a much larger amount than many people would normally eat. It was also short and involved men, so its results cannot establish what would happen with typical portions, longer use or other groups of people. Treat the findings as preliminary rather than a reason to aim for the study dose.

How can you use blackberries for weight loss?

Choose a portion that fits your appetite and use blackberries in a meal or snack you already enjoy. For example, add them to plain yogurt or oatmeal, or eat them on their own instead of a sweet snack you find less filling. Pairing them with a source of protein can make a snack more satisfying for some people.

Fresh and unsweetened frozen blackberries are both practical options. Check the label on packaged fruit or blackberry products for added sugar, and consider what else you add: cream, sweetened toppings and large amounts of syrup can increase the calories of the finished dish.

You can also plan around convenience. Keep washed fresh blackberries ready to eat, or store frozen ones for use when fresh fruit is not available. The aim is to make a satisfying choice easier, not to follow a rigid blackberry diet or skip meals.

For a flavored drink, try blackberry infused water; for other options, see the best drinks for weight loss. Infused water is not nutritionally equivalent to eating the whole fruit, especially if you discard the blackberries.

Who should be careful with blackberries?

Wash fresh blackberries under running water before eating them. If you are not used to high-fiber foods or have irritable bowel syndrome, increase fiber gradually and see how you feel; a sudden increase can cause digestive discomfort. Seek medical advice for persistent or severe symptoms.

If you have diabetes and use insulin or other glucose-lowering medication, ask your diabetes care team for guidance before making major changes to your carbohydrate intake. Do not stop or change medication on your own.

If you are pregnant, discuss intentional weight loss with your clinician rather than starting a restrictive diet. Children should not be put on a weight-loss diet without guidance from a pediatric healthcare professional; cut blackberries into smaller pieces when appropriate for a young child's eating skills and supervise eating.

See a clinician if you have unexplained weight loss or concerns about your weight or eating habits. If eating blackberries causes symptoms such as difficulty breathing or swelling of the throat, seek emergency care.