Drinking blackberry juice can deliver a number of surprising health benefits for those who regularly add it to their morning routine or incorporate it into their diet in other ways.
What is Blackberry Juice?
Blackberry juice is the juice derived from blackberries (Rubus allegheniensis), a fruit-bearing bramble common to colder Northern climates. The berries of this shrub are dark black or purple, and when ripe, they are sweet and very delicate to the touch. Blackberry juice has been used for thousands of years as a traditional folk medicine for several different health problems and is also known for its simultaneously tart and sweet taste.
Benefits of Blackberry Juice
The top benefits of blackberry juice include its ability to nourish pregnant women, treat diarrhea, reduce inflammation and gout, and boost skin health.
Tonic for Pregnancy
This juice is considered beneficial for women during pregnancy. It contains many recommended prenatal vitamins and minerals, such as folate, vitamin C, calcium, iron, magnesium, and phosphorous. In particular, folate is necessary to prevent neural tube defects in the unborn child. Plus, the low sugar and high water content of this juice make it a perfect, low-glycemic drink.
Serving Size : Nutrient Value Water [g] 90.9 Energy 38 Energy [kJ] 158 Protein [g] 0.3 Total lipid (fat) [g] 0.6 Ash [g] 0.4 Carbohydrate, by difference [g] 7.8 Fiber, total dietary [g] 0.1 Sugars, total including NLEA [g] 7.7 Calcium, Ca [mg] 12 Iron, Fe [mg] 0.48 Magnesium, Mg [mg] 21 Phosphorus, P [mg] 12 Potassium, K [mg] 135 Sodium, Na [mg] 1 Zinc, Zn [mg] 0.41 Copper, Cu [mg] 0.11 Selenium, Se [µg] 0.3 Vitamin C, total ascorbic acid [mg] 11.3 Thiamin [mg] 0.01 Riboflavin [mg] 0.02 Niacin [mg] 0.45 Vitamin B-6 [mg] 0.02 Folate, total [µg] 10 Folate, food [µg] 10 Folate, DFE [µg] 10 Choline, total [mg] 6.6 Vitamin A, RAE [µg] 6 Carotene, beta [µg] 74 Vitamin A, IU [IU] 123 Lutein + zeaxanthin [µg] 68 Vitamin E (alpha-tocopherol) [mg] 0.9 Vitamin K (phylloquinone) [µg] 15.2 Fatty acids, total saturated [g] 0.02 16:0 [g] 0.01 18:0 [g] 0 Fatty acids, total monounsaturated [g] 0.06 18:1 [g] 0.05 20:1 [g] 0 Fatty acids, total polyunsaturated [g] 0.34 18:2 [g] 0.23 18:3 [g] 0.12 Sources include : USDA 
This juice is often used to treat diarrhea and fluid retention. It is also considered as a treatment for gout and is recommended as a diabetic-friendly food.
Blackberries contain many nutrients which are beneficial for the skin. Vitamin C produces skin-toning collagen, which helps restore elasticity and retain moisture in skin cells. Vitamin E prevents fine lines and wrinkles, while antioxidants help protect the skin from free radical damage. 
Blackberry juice is a good source of lutein, which protects the eyes from oxidative stress and ultraviolet radiation by forming a protective barrier. The anthocyanins in blackberries also prevent macular degeneration, loss of night vision, and cataracts. 
The minerals in blackberries are all essential for the development of strong bones, including phosphorus, calcium, and potassium.
The anthocyanins and minerals in blackberry juice reduce the risk of heart disease by promoting arterial flow and regulating blood pressure. Improved blood circulation and blood pressure can also reduce the risk of stroke or hypertension. 
The polyphenolic compounds in blackberries may slow down age-related cognitive and motor disabilities. Daily consumption of blackberry juice may improve memory and mental function.
Blackberry juice is an excellent source of vitamin K, a commonly forgotten essential vitamin that promotes regular blood clotting and prevents excessive bleeding. Vitamin K is also important for bone health and cardiovascular support. 
People on blood-thinning medication, those undergoing treatment for other blood disorders, or people scheduled for surgery in the next two weeks should not drink blackberry juice, as it could cause complication during the procedure.