Your Guide to Morosil Blood Orange Extract

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Globally, weight management continues to be a challenge for many individuals despite the overwhelming (and often confusing) amount of information out there pertaining to nutrition and exercise.

Thanks to scientific advancements and research, Morosil® is becoming increasingly popular in the wellness community. Made from Sicilian moro oranges, Morosil® may help you lose some excess pounds, and reduce the accumulation of fat in areas like the waist and hips in conjunction with diet and exercise.

In today’s article, we will dive into what Morosil® is, what the benefits are, how it works, and if you should consider adding it to your daily routine, which should include a sensible diet and exercise.

What Is Morosil® and what is it made from?

Morosil® is a blood orange extract that is sourced from Moro red oranges (Citrus sinensis (L.) Osbeck) and the ‘Moro’ variety is believed to have originated at the beginning of the 19th century in Sicily. Vitamin C, flavonoids, hydroxycinnamic acids, and anthocyanins, which have antioxidant properties, are all abundant in moro oranges. Moro oranges are the most colorful of the blood oranges. Their flavor is stronger, and their aroma is more intense in comparison to other types (tarocco and sanguinello).

How Does Morosil® Work?

Numerous bioactive compounds found in Morosil® may speed up fat cell breakdown and possibly suppress adipogenesis (the formation of fat cells)1.

Morosil® is a solid extract containing all the key substances of Moro orange juice: anthocyanins (cyanidin-3-O-glucoside), hydroxycinnamic acids (caffeic, cumaric, ferulic, sinapic acid), flavone glycosides (narirutin, hesperidin) and ascorbic acid.

These nutritional compounds are believed to be responsible for the weight management properties exhibited by Morosil®.

Additionally, recent studies on humans and animals have discovered that flavonoids, particularly the abundantly present anthocyanin in Morosil®, influence lipid metabolism by suppressing gene expression factors that would otherwise encourage fat storage and accumulation1.

Who makes Morosil®?

Morosil® is made by the Italian company Bionap S.R.L., a dynamic and innovative group which since 1997 has produced standardized extracts obtained from plants and fruits growing in the areas surrounding Mt. Etna, the main volcano in the Mediterranean area.

Bionap is headquartered not far from Mt. Edna in eastern Sicily. It is here that Bionap cultivates many of the fruits and plants used in its products – including the unique Moro oranges used to make Morosil®.

The soil in this region is very rich, in fact, it is considered an optimal area to grow the Moro orange because large diurnal temperature fluctuations (hot days, cold nights) cause an intense red pigmentation in the orange flesh. Thanks to the climatic condition of these regions, the Moro flesh ranges from orange-veined with ruby coloration, to vermilion, sometimes nearly to black.

What are the benefits of Morosil®?

The major benefit of Morosil® for health is that it might encourage fat loss, especially in overweight individuals. More specifically, it may have the following effects on the body:

  • Reduction in body mass index (BMI)
  • Help users lose excess pounds or maintain a healthy body weight
  • Help reduce the accumulation of fat in areas like the waist and hips1

Does Moro blood orange extract help you lose weight?

According to preliminary human research, supplementing overweight but otherwise healthy participants with 400 mg of a Moro blood orange standardized extract (Morosil®) for 12 weeks led to a significant decrease in body weight, body mass index (BMI), waist circumference, and hip circumference compared to the placebo group.1

Additionally, the latest Morosil® study published in 2022 showed how this unique juice powder may increase the results you see from diet and exercise alone.2

Adults between the age of 20 and 65 (overweight, but otherwise healthy) were given a reduced calorie diet and exercise advice to follow for 6 months. Half of the adults also took 400mg of Morosil® daily (the other half a placebo).2

Compared to the placebo group, those taking Morosil® experienced on average: 2.8x more inches lost at the waist; 1.6x more inches lost at the hips; 1.9x greater loss in weight; 2.0x greater reduction in BMI.2 Each NatureCity TrueSlim capsule contains the same 400mg of Morosil® used in the study.

What are anthocyanins?

So I know we’ve mentioned “anthocyanins” quite a bit throughout this article, so let’s talk about what exactly they are and why they’re important, especially in Morosil®!

Anthocyanins are a series of intensely colored red, purple, and blue pigments that are present in plants. They belong to a wider class of plant-based compounds known as flavonoids. All plant parts, including the fruits, seeds, shoots, flowers, and leaves, are rich in flavonoids. By attracting pollinators, they aid in plant reproduction and shield plants from environmental stresses including UV (ultraviolet) light, drought, and cold.

Experts say that one of the key substances within the Moro orange is anthocyanins, which is responsible for the beneficial effects that the red-orange extract has on the body.3

Contrary to other orange kinds, it has been demonstrated that the phytocomplex in Moro juice has a high level of anthocyanins and a significant anti-fat accumulation effect.4

Is Morosil® safe?

The latest Morosil® study published in 2022 found that the “Moro” blood orange standardized extract, in conjunction with diet and exercise, was shown to be safe and well tolerated.2 Additionally, all safety markers of liver toxicity were within the normal range at baseline and month 3 and 6 for both treatment groups indicating that the Moro orange standardized extract is generally well tolerated (be sure to discuss with your healthcare provider prior to beginning any supplement if you have any medical conditions or are currently take any medications).2

Bottom Line: Whether you’re looking to lose some excess pounds and fat mass, or maintain your current numbers in 2023, TrueSlim may be the difference maker! TrueSlim contains 400 mg per capsule of the scientifically studied Morosil® that we discussed in today’s article, get it today here!



- Maryann Walsh, MFN, RD, LDN
Maryann is a Registered Dietitian, Certified Diabetes Care and Education Specialist and a Certified Personal Trainer. Maryann pursued the study of dietetics and nutrition because from a young age she became conscious about making healthy decisions and how they can affect our overall health and happiness. Maryann wanted to become a dietitian in order to share her passion and enthusiasm for all things health and wellness with others and to help guide individuals on a path to a healthier lifestyle. Maryann possesses bachelors degrees in Biological Sciences and Dietetics as well as a masters degree in Food and Nutrition. Read more from Maryann!