Why You're Still Tired (and What to Actually do About it)

If you've read the last two posts, you know that sleep isn't just a brain problem. Your melatonin depends on tryptophan from food. Your tryptophan pathway depends on B6, magnesium, and healthy gut bacteria. Your gut bacteria depend on what you eat, how well you sleep, and whether your gut lining is intact enough to absorb any of it.

For a lot of people, poor sleep isn't one problem. It's a chain of small failures that reinforce each other — which is why fixing just one thing rarely works for long.

START WITH FOOD - ALWAYS

Before supplements or testing, look at what you're eating in the hours before bed. A dinner with a tryptophan-rich protein, salmon, eggs, chicken, cottage cheese, paired with a complex carb like sweet potato or brown rice gives your body the raw materials it needs. Add spinach or pumpkin seeds for magnesium. Finish the evening with pistachios, tart cherry juice, or a cup of bone broth.

It's not a magic routine. But it creates a consistently better biochemical environment for sleep than most people's current habits do.

 RESPECT THE RHYTHM

Your gut microbiome has its own circadian clock. Erratic meal times, late nights, and inconsistent wake times disrupt it. And a disrupted microbiome disrupts sleep in return — it's a loop that's hard to break if you're only working on one side of it. Consistent meal timing, especially keeping dinner earlier, is one of the quieter levers that most people never think to pull.

THEN LOOK AT YOUR GUT

If you eat reasonably well and still sleep poorly, the gut is worth investigating. Start by adding more variety, fermented foods, and prebiotic fiber from garlic, onions, leeks, and asparagus. These feed the bacteria that produce GABA, serotonin precursors, and butyrate, all of which directly support sleep. Give it four to six weeks, because the microbiome shifts slowly.

If that doesn't move the needle, a comprehensive stool test can show you exactly what's missing or overgrown. There's a real difference between taking a probiotic because you heard it was good for sleep and taking specific strains because your results showed a deficiency. One is a guess. The other is a plan.

Also worth considering: chronic low-grade inflammation, driven by a compromised gut lining or an undetected overgrowth, can keep cortisol elevated at night without any obvious digestive symptoms. If you regularly feel wired but exhausted, that pattern is a clue.

 THE THREAD RUNNING THROUGH ALL OF THIS

What you eat determines the raw materials available for melatonin. The state of your gut determines how well those materials are absorbed and used. The state of your sleep determines how well your gut functions the next day.

They're not separate problems. They're the same problem at different depths.

The body is trying to sleep. It just needs the right conditions, and most of the time, building those conditions starts not at the pharmacy, not in the bedroom, but at the dinner table, and in the ecosystem living just below it.