Currently, there are no long-term, large-scale randomized controlled trials (the gold standard of science) specifically on the carnivore diet. Most of what we "know" comes from two sources:

Elimination Theory: Science well-supports that removing ultra-processed foods, sugars, and certain plant allergens can reduce systemic inflammation.

The Harvard Study (2021): Researchers Belinda Lennerz and David Ludwig surveyed 2,000 people on the diet. Participants reported high levels of satisfaction, weight loss, and improved glycemic control. However, because it was a self-reported survey, it isn't considered "hard" proof.

Why People Report Feeling Better:

Most researchers suspect the benefits people feel aren't necessarily from a "meat miracle," but rather from what they stopped eating:

The Ultimate Elimination Diet: By removing gluten, nightshades, lectins, and FODMAPs, people with undiagnosed sensitivities often feel an immediate "brain fog" lift.

Ketosis: Since the diet is zero-carb, the body enters ketosis, which is scientifically linked to suppressed appetite and steadier energy levels.

Protein Leverage: High protein intake increases satiety, making it very difficult to overeat calories.