ThinBerry® Opti-Curb® Cinnamon Twist

ThinBerry Opti-Curb Cinnamon Twist

Rainbow Light's ThinBerry® Opti-Curb® Cinnamon Twist shake offers a unique approach to help you achieve safe and sustainable weight loss with a comprehensive, low-carbohydrate formula that delivers protein, appetite control and energy support. The creamy cinnamon flavor includes 15 g of high-quality brown rice per serving for an immediate protein boost. A natural Appetite Control Complex, Metabolism and Energy Complex, and 4 grams of fiber help curb cravings, maintain healthy blood sugar levels and fuel energy.* When used as directed,ThinBerry® Opti-Curb® Cinnamon Twist shakes can support a healthy weight management program, and help you achieve your weight loss goals!* The gluten-free formula is 100% natural with no artificial colors, flavors, sweeteners, preservatives or additives, and no sugar, lactose, wheat, soy or yeast is included. It is VeganGuard® guaranteed to be free of animal products.

Natural Protein from Nutrient-Rich Brown Rice

Each serving of ThinBerry® Oti-Curb® contains 15 g of brown rice protein to help satisfy the appetite.* Non-allergenic brown rice is an easy-to-digest, gluten-free source of protein and provides a complete amino acid profile.

Fiber and Herbs for Appetite Control

This formula's 1,422 mg of Appetite Control Complex contain fenugreek seed, green tea, cinnamon, chromium, and Svetol (green coffee bean extract) to help maintain healthy blood sugar levels to promote appetite control.* A total of 4 grams of heart-healthy fiber per serving slows glycemic response to support feeling fuller longer.*

Ginseng, Biotin, and L-Carnitine Support Metabolism and Energy

Rainbow Light's Metabolism & Energy Boosting Complex includes 1,000 mg of L-carnitine, 200 mg of American ginseng, and 30 mg of kelp. Iodine, found in kelp, and L-carnitine stimulate fat burning while ginseng promotes natural energy production.*

Digestive Support from Plant-Sourced Enzymes, Ginger and Citrus

To support digestion and alleviate bloating and constipation, ThinBerry® Opti-Curb® combines potent levels of plant-sourced enzymes, including 60,000 PU bromelain, 9,000 HUT protease and 705 DU amylase, combined with ginger and citrus peel.*

Purity Guarantee: Vegan; Free of Most Common Allergens; Gluten-Free, Sugar-Free, Lactose-Free & 100% Natural

ThinBerry® Opti-Curb is VeganGuard® guaranteed to be free of animal products. It is Allergen SafeGuard® guaranteed to contain no gluten, soy, yeast, milk, eggs, nuts, fish or shellfish. It is 100% natural and contains no artificial colors, flavors, sweeteners, preservatives or additives.

Product Highlights

  • A long-lasting appetite control shake that supports safe and sustainable weight management
  • Delivers 15 g of nutrient-rich and gluten-free brown rice protein per serving. Supports healthy energy levels throughout the day*
  • Appetite Control Complex maintains healthy blood sugar levels, while 4 g of heart-healthy fiber per serving slows glycemic response to support feeling fuller longer*
  • Metabolism & Energy Boosting Complex stimulates fat burning and promotes natural energy production*
  • Potent levels of plant-sourced enzymes, ginger, and citrus peel support digestion and alleviate bloating and constipation*
  • VeganGuard®: Free of animal products
  • Allergen SafeGuard®: Contains no gluten, soy, yeast, milk, eggs, nuts, fish or shellfish
  • 100% Natural -- Free of artificial colors, flavors, sweeteners, preservatives and additives
*These statements have not been evaluated by the Food and Drug Administration.
This product is not intended to diagnose, treat, cure or prevent any disease.

Supplement Facts

Serving Size 1 Scoop (26.4 g)
Servings Per Container 12

Amount Per Serving % DV

Calories from Fat

Total Fat
1 g
3% †
Total Carbohydrate
7 g
3% †
Dietary Fiber
4 g
16% †
1 g
Protein (from brown rice concentrate)
15 g
1 mg
2 mg
Iodine (from Kelp)
150 mcg
Chromium (as Amino nicotinate)
300 mcg
28 mg
30 mg
Appetite Control Complex
1,422 mg
Fenugreek [seed] concentrate
1,000 mg
Green Tea Extract
300 mg
Cinnamon [bark] 4:1 Extract
100 mg
Svetol® (green coffee bean extract)
22 mg
Fiber Complex
2.4 g
Rice Bran, Apple Fiber, Beet Root, & Guar Gum

Metabolism & Energy Boosting Complex
1,230 mg
1,000 mg
American Ginseng [root] 4:1 Extract
200 mg
30 mg
Comprehensive Digestive Support
440 mg
60,000 PU
9,000 HUT
705 DU
8 LU
8 CU
Ginger [rhizome]
25 mg
Citrus [peel]
15 mg
Stevia [leaf] Extract
34 mg

† Percent Daily Values (DV) are based on a 2,000 calorie diet.
* Daily Value (DV) not established.

Other Ingredients: Cinnamon Flavor (natural), vanilla custard flavor (natural), cinnamon [bark] powder, vanilla flavor (natural). For best results, try with ThinBerry® Diet.

Storage: Store in a cool, dry place. Do not refrigerate.

Suggested Usage: Measure one scoop into a glass and add 8 oz. of your favorite dairy or non-dairy beverage. Shake pouch well before each use. For a delicious smoothie, add yogurt, fresh or frozen fruit and ice.

Guarantee: 100% Natural - Free of artificial colors, flavors, sweeteners, preservatives and other objectionable additives often found in vitamin products. Contains no sugar or lactose.


“Not just for weight loss. I spent some time recently with a Registered Dietician to evaluate my vegan diet and help me optimize my nutrition. …Finding a vegan shake that is good enough to want to drink every day is the real challenge! …The Opti-Curb Cinnamon Twist, however, is great! …I have a few baggies in my locker at work so I can ensure adequate protein intake on my busiest shifts. …This is a delicious way to add protein and fiber to any diet.” V. Quinlan

“Great stuff! I bought this in order to make my breakfast shakes with. It is amazing in the morning blended with some almond milk, berries and fiber powder. I love this stuff and it keeps me full until lunch time, which is a benefit. It makes a quick and easy breakfast, I recommend it for anyone. …” Solaris

“Out of This World! I adore this product! I picked it up on a whim one day at a pharmacy and boy was I pleasantly surprised! Currently, how I eat it is as such: Mix ½ to 1 scoop of this powder with egg whites and cook like a pancake! When I serve it, I sprinkle it with a bit more stevia and cinnamon. It’s perfect! Light & nourishing yet gives me BOUNDS of energy! And let me tell you, I need it because right after I eat, I go work out for two hours! I am not even hungry when I am done!” C. Dubois 

Active Ingredients: 15 g brown rice protein, 1,422 appetite control complex, fiber complex, metabolism & energy boosting complex, 300 mcg chromium, plant-sourced digestive enzymes