Neue Theory vs KOS Organic: Which Plant-Based Protein Powder Is Easier on the Gut?

Looking for a plant-based protein powder that doesn’t leave you bloated? We compare Neue Theory and KOS Organic to help you choose the best vegan protein powder for gut health and digestion, especially if you're managing IBS or sensitive stomachs.

If bloat, gas, or discomfort have ever followed your smoothie, this one’s for you.

Protein Blend

• Neue Theory
  Crafted with a precise blend of pea and hemp protein, our formula is light on the gut and third-party tested.

• KOS Organic
  Combines multiple protein sources including pea, flaxseed, pumpkin seed, chia, and quinoa for a broad nutritional profile. 

Digestive Support

• Neue Theory
  Designed by a Registered Dietitian for those with IBS and food sensitivities. Each serving includes clinically-backed probiotics and digestive enzymes including clinically studied Bacillus strains that support a balanced gut microbiome, support nutrient absorption and reduce bloat. Our formula is low-FODMAP and gentle on digestion, ideal for sensitive stomachs.

• KOS Organic
  Includes a general enzyme blend, but no probiotics or formulation geared toward gut sensitivity. Their blend includes high FODMAP ingredients that may cause bloating like inulin, shiitake mushrooms, apples, cranberries.

Sweeteners

• Neue Theory
  Lightly sweetened with monk fruit. No stevia, no sugar alcohols, and no aftertaste.

• KOS Organic
  Uses a mix of coconut sugar, monk fruit, and stevia, which may be overly sweet or irritating for those with sugar sensitivities or gut issues.

*Studies show that low-FODMAP diets can reduce bloating in people with IBS. Learn more from Monash University. 

Formulation Philosophy

• Neue Theory
  A minimalist, gut-first approach with clinically effective ingredients, built specifically for women’s wellness and daily digestion.

• KOS Organic
  A superfood-style formula with a long ingredient list, including fruit and vegetable powders in in proprietary blends with no indication of how much. Nutrient-dense, but not tailored to those with digestive sensitivities.

The Bottom Line

If you’re looking for a nutrient-rich superfood blend, KOS offers variety. But if you’re focused on feeling good after your protein intake without the bloat, gas, or discomfort, Neue Theory was made for you. Our clean, targeted approach supports real digestion, real science, and real women.

Try It for Yourself

If you’re tired of protein powders that leave you bloated or gassy, it’s time to make the gut-friendly switch. Ready to feel the difference? Shop Neue Theory’s 2-in-1 Protein + Probiotics and give your gut the daily support it deserves.