The High-Acid Secret: What Our Stomach pH Reveals About the Human Diet There is a growing conversation around the idea that humans evolved to thrive primarily on a carnivore diet. While this often feels counter-intuitive due to decades of conventional dietary advice, examining our internal biology—specifically our stomach acidity—provides a striking starting point for understanding our true evolutionary path. The pH Scale: A Logarithmic Tale To understand why stomach acid matters, we first need to remember that the pH scale is logarithmic . This means that a pH of 1 is 10 times more acidic than a pH of 2, and 1,000 times more acidic than a pH of 4. When we compare humans to other animals, we find ourselves in a very specific, and somewhat surprising, biological category. Where Do Humans Fit? Research into the evolution of stomach acidity has shown that a high level of acid is not just for breaking down food, but also acts as an "ecological filter...
If you’re an athlete trying to improve, you’ve probably seen all kinds of training online — complex periodisation charts, colour‑coded spreadsheets, elite‑level routines that look like they belong in a lab. It’s easy to think that the more complicated the training looks, the better it must be. But here’s the truth I want you to hear clearly: Great coaching isn’t about making training complicated. It’s about making training work for you . That’s exactly what modern coaching principles — including those used in UK Athletics — reinforce. Why your training might look simple — and why that’s a good thing When you’re still developing (as we all are) — physically, technically, and mentally — the most powerful thing you can do is repeat the right skills consistently. That’s how your body learns. That’s how your technique becomes automatic. That’s how you build confidence. This is why I often rotate just one, two, or three core sessions across a training block. It’s not because I’...