A Zero Carbohydrate, Carnivore Diet Can Normalize Hydrogen Positive Small Intestinal Bacterial Overgrowth Lactulose Breath Tests A Case Report

Small intestinal bacterial overgrowth (SIBO) is a condition where too many bacteria grow in the small intestine, causing symptoms like bloating, abdominal discomfort, and digestive issues. It can also lead to poor nutrient absorption and nutritional deficiencies. This condition is typically diagnosed using a breath test that measures hydrogen gas produced by bacteria when they break down sugars.

This small case study followed six patients with confirmed SIBO who chose to try a "carnivore diet" - eating only animal products like meat and fat, with zero carbohydrates or fiber - for 2-6 weeks. The idea behind this approach was to essentially "starve out" the problematic bacteria that thrive on carbohydrates, while still providing adequate nutrition through animal proteins and fats.

The results were encouraging: five of the six patients who followed the diet for four weeks or longer tested negative for SIBO after the intervention. The one patient who only maintained the diet for two weeks showed significant improvement but didn't achieve complete normalization. All patients maintained their weight and nutritional status during the dietary period.

While these results suggest that eliminating carbohydrates might help reset gut bacteria balance, this was a very small study without a control group, and the research hasn't been peer-reviewed yet. For patients struggling with SIBO, this approach represents one potential dietary intervention that could be discussed with healthcare providers as part of a comprehensive treatment plan, though it requires careful medical supervision given the restrictive nature of the diet.