Understanding EPG: The New Ingredient in Protein Bars

In recent discussions about health and nutrition, a new ingredient has surfaced that is causing concern: EPG (asterified propoxylated glycerol). This ingredient is being added to various protein bars, marketed for its unique texture and low calorie content. However, it raises significant questions about its safety and nutritional impact.

What is EPG?

EPG is derived from canola oil, where the fatty acid tails are separated from the glycerol head and combined with a propoxyl molecule. This process results in a substance that mimics the mouthfeel of fat, described as similar to warm candle wax. However, it is important to note that EPG is indigestible, which leads to various gastrointestinal side effects.

Historical Context: The Olestra Experience

EPG has drawn comparisons to Olestra, an earlier fat substitute that was notorious for causing gastrointestinal issues such as anal leakage. Studies indicated that Olestra could lead to a decrease in the absorption of fat-soluble vitamins like beta carotene and Vitamin K1. This raises concerns that EPG may have similar effects on nutrient absorption, leading to deficiencies over time.

Research Findings

In an eight-week study involving EPG, participants experienced various gastrointestinal side effects, including:

Gas and bloating
Anal spotting
Discharge

Moreover, EPG was shown to appreciably decrease the absorption of vital fat-soluble vitamins, which is alarming given that many individuals consume protein bars as a health-conscious choice.

Marketing and Misleading Claims

Companies are promoting EPG-containing products, such as the David Bar, as having the highest protein content per gram, touting claims of "protein perfected." However, the reality is that these bars are ultra-processed and often lack essential micronutrients while being loaded with artificial flavors and sweeteners like sucralose.

The Convenience Food Dilemma

As convenience foods continue to dominate the market, it becomes increasingly important for consumers to be aware of what they are ingesting. High-protein processed foods may seem appealing due to their marketing, but they often come with hidden costs in terms of nutrient quality and overall health.

Conclusion: A Call for Awareness

As EPG and similar ingredients find their way into more products, it is crucial for consumers to remain vigilant. Opting for whole food sources of protein, like chicken breast or sirloin steak, remains a healthier and more nutrient-dense choice compared to processed alternatives that may compromise health in the long run.

Key Takeaways

EPG is an indigestible fat substitute that mimics the mouthfeel of fat but can cause gastrointestinal issues.
It may reduce the absorption of crucial fat-soluble vitamins.
Processed protein bars containing EPG often lack essential nutrients and contain artificial additives.
Choosing whole food protein sources is a healthier alternative.