Bulletproof Greens Review


The consumption of green vegetables has been associated with numerous health benefits, including reduced risk of chronic diseases such as cardiovascular disease and certain types of cancer (Boeing et al., 2012)[^1^]. Bulletproof Greens, a relatively new product in the market, claims to provide these benefits in a convenient, easy-to-consume format. This review aims to critically evaluate the nutritional efficacy and potential health implications of Bulletproof Greens, drawing from existing scientific literature and recent research findings.


Bulletproof Greens is a powdered supplement from Bulletproof Nutrition Inc. that claims to fuel the body and mind with a mix of 35 superfoods, vitamins, minerals, digestive aids, and nootropics. However, the product has been criticized for its under-dosed ingredients and lack of brand transparency. Despite its affordable price and strong branding, the supplement’s effectiveness is questionable due to the small serving size and the use of proprietary blends, which obscure the individual weights of each ingredient.

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  • 🌿 Bulletproof Greens is a supplement that contains 35 superfoods, vitamins, minerals, digestive aids, and nootropics.
  • 💊 The supplement is available in powder form, which can be mixed with water for consumption.
  • 📊 The product has received mixed reviews, with some customers praising its taste and others criticizing its sweetness and the inclusion of stevia.
  • 🏷️ The cost of Bulletproof Greens ranges from $35.96 to $44.95 per jar, with a 20% discount available for subscription purchases.
  • 📉 The serving size of Bulletproof Greens is 7.9 grams, which is smaller than the 12-gram servings offered by some competitors.
  • 🧪 The product’s effectiveness is questionable due to the use of proprietary blends, which hide the individual weights of each ingredient.
  • 🔄 Bulletproof offers a 30-day returns policy for its supplements.

Nutritional Composition and Bioavailability

Bulletproof Greens is a blend of various green vegetables, including kale, spinach, and broccoli, among others. These vegetables are known for their high content of essential nutrients, such as vitamins A, C, and K, as well as dietary fiber and antioxidants (Liu, 2003)[^2^]. However, the nutritional value of Bulletproof Greens depends not only on the nutrient content of the raw ingredients but also on their bioavailability – the proportion of nutrients that can be absorbed and utilized by the body.

Research has shown that the bioavailability of nutrients in green vegetables can be influenced by various factors, including the method of processing and the presence of other dietary components (Fernández-García et al., 1997)[^3^]. For instance, the bioavailability of carotenoids, a type of antioxidant, is enhanced by cooking and the presence of dietary fat (Brown et al., 2004)[^4^]. Therefore, the nutritional efficacy of Bulletproof Greens may be affected by the processing methods used in its production and the dietary context in which it is consumed.

Health Implications

The potential health benefits of Bulletproof Greens are largely attributed to its high content of antioxidants, which are compounds that can neutralize harmful free radicals in the body. A high intake of antioxidants has been associated with a reduced risk of chronic diseases, including heart disease and certain types of cancer (Liu, 2003)[^2^].

However, while the antioxidant content of Bulletproof Greens is likely to be high due to the inclusion of antioxidant-rich vegetables, it is important to note that the health benefits of antioxidants are still a topic of ongoing research. Some studies have suggested that antioxidant supplements may not provide the same benefits as a diet rich in antioxidant-containing foods (Bjelakovic et al., 2012)[^5^]. Therefore, while Bulletproof Greens may contribute to antioxidant intake, it should not be relied upon as the sole source of these nutrients.

Furthermore, the high fiber content of Bulletproof Greens may contribute to its potential health benefits. Dietary fiber has been associated with a reduced risk of heart disease, type 2 diabetes, and certain types of cancer, as well as improved gut health (Anderson et al., 2009)[^6^]. However, the fiber content and its bioavailability in Bulletproof Greens, as well as its impact on gut health, warrant further investigation.

Potential Health Risks

While Bulletproof Greens may offer several health benefits, it is also essential to consider potential health risks associated with its consumption. One such risk is the potential for nutrient toxicity. For instance, excessive intake of vitamin K, which is abundant in green vegetables, can interfere with anticoagulant medications and potentially lead to harmful clotting events (Booth et al., 2007)1. Therefore, individuals on such medications should exercise caution when consuming Bulletproof Greens.

Furthermore, the presence of anti-nutritional factors in green vegetables, such as oxalates and phytates, can inhibit the absorption of certain minerals, including calcium and iron (Liu, 2007)2. While these compounds are generally not a concern for most individuals, they may pose a risk to those with specific dietary restrictions or deficiencies.

Another potential concern is the risk of contamination. As Bulletproof Greens is a blend of various vegetables, the risk of contamination from pesticides or heavy metals may be higher compared to single-ingredient products (Bempah et al., 2011)3. Therefore, it is crucial to ensure that the product is sourced from reputable suppliers who adhere to strict quality control standards.

Role in a Balanced Diet

Despite the potential health benefits of Bulletproof Greens, it is important to note that it should not be used as a substitute for a balanced diet. The World Health Organization recommends a minimum of 400g of fruit and vegetables per day for the prevention of chronic diseases such as heart disease, cancer, diabetes, and obesity (WHO, 2005)4. While Bulletproof Greens can contribute to this intake, it should be complemented with a variety of other fruits and vegetables to ensure a broad spectrum of nutrients.

Moreover, the consumption of whole vegetables provides additional benefits that may not be obtained from Bulletproof Greens. For instance, the act of chewing whole vegetables stimulates the production of saliva and gastric juices, aiding digestion (Breslin, 2013)5. Additionally, the dietary fiber in whole vegetables contributes to a sense of fullness, which can aid in weight management (Slavin, 2005)6.

Future Research Directions

While this review provides a comprehensive overview of the current knowledge on Bulletproof Greens, several areas warrant further investigation. For instance, more research is needed to determine the bioavailability of nutrients in Bulletproof Greens and how it is affected by various factors such as processing methods and the presence of other dietary components.

Furthermore, long-term studies are needed to evaluate the health implications of Bulletproof Greens consumption, including its impact on chronic disease risk and gut health. Such studies should also consider potential health risks associated with its consumption, such as nutrient toxicity and the presence of anti-nutritional factors.


In conclusion, Bulletproof Greens appears to be a nutrient-dense product that can contribute to a healthy diet. However, its nutritional efficacy and health implications depend on various factors, including the bioavailability of its nutrients and the dietary context in which it is consumed. While it may offer several health benefits, it should not be used as a substitute for a balanced diet. Further research is needed to fully understand the potential benefits and limitations of Bulletproof Greens.


  1. Boeing, H., Bechthold, A., Bub, A., Ellinger, S., Haller, D., Kroke, A., … & Watzl, B. (2012). Critical review: vegetables and fruit in the prevention of chronic diseases. European Journal of Nutrition, 51(6), 637-663.
  2. Liu, R. H. (2003). Health benefits of fruit and vegetables are from additive and synergistic combinations of phytochemicals. The American journal of clinical nutrition, 78(3), 517S-520S. 2
  3. Fernández-García, E., Carvajal-Lérida, I., & Pérez-Gálvez, A. (2009). In vitro bioaccessibility assessment as a prediction tool of nutritional efficiency. Nutrition Research, 29(11), 751-760.
  4. Brown, M. J., Ferruzzi, M. G., Nguyen, M. L., Cooper, D. A., Eldridge, A. L., Schwartz, S. J., & White, W. S. (2004). Carotenoid bioavailability is higher from salads ingested with full-fat than with fat-reduced salad dressings as measured with electrochemical detection. The American journal of clinical nutrition, 80(2), 396-403.
  5. Bjelakovic, G., Nikolova, D., Gluud, L. L., Simonetti, R. G., & Gluud, C. (2012). Antioxidant supplements for prevention of mortality in healthy participants and patients with various diseases. Cochrane Database of Systematic Reviews, (3).
  6. Anderson, J. W., Baird, P., Davis, R. H., Ferreri, S., Knudtson, M., Koraym, A., … & Williams, C. L. (2009). Health benefits of dietary fiber. Nutrition reviews, 67(4), 188-205.

Potential Applications and Market Trends

The market for green vegetable supplements like Bulletproof Greens has been growing rapidly in recent years, driven by increasing consumer awareness of the importance of a healthy diet and the convenience of such products (Grand View Research, 2020)7. This trend is expected to continue in the coming years, with potential applications in various sectors.

In the health and wellness sector, Bulletproof Greens could be used as a dietary supplement to enhance nutrient intake, particularly for individuals with dietary restrictions or those who have difficulty consuming adequate amounts of vegetables. In the sports nutrition sector, it could be used to support recovery and performance due to its high content of antioxidants and other essential nutrients.

However, to fully realize these potential applications, it is crucial to conduct further research to validate the nutritional efficacy and health benefits of Bulletproof Greens. Moreover, efforts should be made to improve the taste and texture of the product, as these are key factors influencing consumer acceptance (Ares et al., 2010)[^14^].


Bulletproof Greens offers a convenient way to increase the intake of green vegetables, which are known for their numerous health benefits. However, while it is a promising product, more research is needed to fully understand its nutritional efficacy, health implications, and potential applications. As the market for green vegetable supplements continues to grow, it is crucial to ensure that such products are backed by solid scientific evidence and meet high-quality standards.


  1. Booth, S. L., & Suttie, J. W. (2007). Dietary intake and adequacy of vitamin K. The Journal of nutrition, 137(5), 1301-1306.
  2. Liu, Q., Liu, R. H., & Chen, X. (2007). Effect of dietary oxalate and calcium on urinary oxalate and risk of formation of calcium oxalate kidney stones. Journal of Agricultural and Food Chemistry, 55(15), 6064-6069.
  3. Bempah, C. K., Buah-Kwofie, A., Enimil, E., Blewu, B., & Agyei-Martey, G. (2012). Residues of organochlorine pesticides in vegetables marketed in Greater Accra Region of Ghana. Food Control, 25(2), 537-542.
  4. World Health Organization. (2005). Fruit and vegetables for health: Report of a Joint FAO/WHO Workshop, 1–3 September 2004, Kobe, Japan.
  5. Breslin, P. A. (2013). An evolutionary perspective on food and human taste. Current Biology, 23(9), R409-R418.
  6. Slavin, J. (2005). Dietary fiber and body weight. Nutrition, 21(3), 411-418.
  7. Grand View Research. (2020). Dietary Supplements Market Size, Share & Trends Analysis Report By Ingredient (Botanicals, Vitamins, Minerals, Amino Acids, Enzymes), By Form, By Application, By End User, And Segment Forecasts, 2020 – 2027.
  8. Ares, G., Gámbaro, A., Giménez, A., & Deliza, R. (2010). Influence of three non-sensory factors on consumer choice of functional yogurts over regular ones. Food Quality and Preference, 21(4), 361-367.