The Lab Notes

One insight. Every Monday.

The latest in integrative and functional health — research, protocols, and practical tools — straight to your inbox every Monday.

  • Clinic-tested tips you can use the same week.
  • Honest takes on supplements, labs, and trends.
  • Recipes Luba and her clients actually eat.

Past issues

September 14, 2026

Back to the Gut — Where It All Connects

Good morning,

To close out this run of research, let's return to where we started. Recent studies have confirmed just how far gut health reaches — specific gut bacteria byproducts have been linked to artery health, and prebiotic fiber (specifically human milk oligosaccharides) was shown to measurably shift hormones and brain-supporting compounds in older adults in just 12 weeks.

Where to begin: If you've made it through ten weeks of small changes with us — a new vegetable, a short walk, an earlier bedtime — this is the through-line. Almost everything we've covered together traces back to the gut. It was never one fix. It was always the foundation.

Nothing is permanently broken. Nothing. Give your body what it needs, and it will do the rest.

Have a healthy day! 🌿 Luba

September 7, 2026

The Sleep Hormone That Also Fights Pain

Good morning,

New research found that melatonin eased chronic musculoskeletal pain about as effectively as over-the-counter painkillers. Melatonin is best known for sleep, but its role in the body reaches further — into inflammation and pain regulation.

Where to begin: If you deal with ongoing aches and already struggle to fall asleep, this is worth a conversation about whether melatonin has a place in your routine. Timing and dose matter more than people realize, so this isn't a swap to make on your own without guidance.

Have a healthy day! 🌿 Luba

August 31, 2026

What Sitting Too Long Is Actually Doing

Good morning,

A new study just linked prolonged sitting and sedentary time to a higher risk of several cancers, including colorectal and breast cancer. This isn't about replacing exercise — it's a separate finding. You can work out for an hour and still sit for ten, and the sitting carries its own risk.

Where to begin: Set a timer for every 45-60 minutes and stand up, even briefly. A 2-minute walk to refill your water counts. This is one of the lowest-effort, highest-leverage habits you can build this month.

Have a healthy day! 🌿 Luba

August 24, 2026

Could Creatine Support Your Mood, Too?

Good morning,

A large research review just looked at creatine — usually known as a muscle-building supplement — for a very different reason: depression. The theory is that creatine supports the brain's energy production directly, and some studies in the review showed real symptom improvement, though the overall evidence is still mixed.

Where to begin: This connects to something we've covered before — your mood and your mitochondria are more linked than most people realize. If you're already using creatine for strength training, this may be a quiet bonus. If you're not, it's worth a conversation about whether it fits your picture.

Have a healthy day! 🌿 Luba

August 17, 2026

What Two Years of Fish Oil Actually Did (and Didn't Do)

Good morning,

Here's an honest one. A 2-year study just found that fish oil supplements successfully delivered omega-3s to the brain — but produced no meaningful improvement in memory, cognition, or Alzheimer's-related brain changes. Getting a nutrient where it's supposed to go doesn't automatically mean it changes the outcome we hoped for.

Where to begin: This doesn't mean omega-3s don't matter — they still support heart and inflammatory health. It means supplements deserve the same honest evaluation as anything else, and one study is a data point, not a verdict. Keep taking what works for you, and stay curious about what the research says versus what the bottle promises.

Have a healthy day! 🌿 Luba

August 10, 2026

The One Workout That Beat the Rest, After 70

Good morning,

A six-month study following more than 120 adults in their 70s found something specific to HIIT: high-intensity interval training helped people lose fat without losing the muscle that's so hard to rebuild later in life. Other forms of exercise in the study didn't show the same protective effect on muscle.

Where to begin: HIIT doesn't have to mean sprinting or burpees. Alternating one minute of faster-paced walking with two minutes of your normal pace, for 15-20 minutes, is a real, accessible version of this — a good place to start if this is new for you.

Have a healthy day! 🌿 Luba

August 3, 2026

The Vitamin Your Brain Is Quietly Asking For

Good morning,

A study of more than 2,000 older adults in Japan just found something worth paying attention to: people with lower vitamin C levels in their blood tended to have less gray matter — the brain tissue tied to memory and processing. Vitamin C isn't just an immune vitamin. It's a brain one too.

Where to begin: Most of us assume a single piece of fruit covers it. Bell peppers, kiwi, citrus, and broccoli all deliver more vitamin C than an orange, gram for gram. Add one of these daily rather than relying on a supplement alone.

Have a healthy day! 🌿 Luba

July 27, 2026

The Real Reason Exercise Keeps You Young

Good morning,

Scientists just found the molecular switch behind one of movement's biggest benefits. A gene called DEAF1 builds up in aging muscle and gets in the way of repair. Exercise turns that switch down — letting older muscle clear out damage and rebuild itself far more effectively than it can at rest.

Where to begin: You don't need an hour at the gym for this. Two to three short strength sessions a week — even bodyweight work — appear to be enough to keep this repair system active. Consistency matters more than intensity here.

Have a healthy day! 🌿 Luba

July 20, 2026

What Centenarians' Blood Actually Looks Like

Good morning,

Researchers just published something remarkable: people who live past 100 in good health carry a distinct chemical fingerprint in their blood — unusual, favorable patterns in bile acids and steroid hormones that set them apart from typical aging. This isn't luck. It's biology responding to decades of specific inputs.

Where to begin: You can't test for a centenarian fingerprint at home, but you can support the same systems — a liver that clears bile acids efficiently (fiber, cruciferous vegetables, adequate protein) and hormones that stay steady (consistent blood sugar, real sleep, regular movement). Longevity is built in ordinary weeks, not extraordinary ones.

Have a healthy day! 🌿 Luba

July 13, 2026

The Weak Spot Hiding in Your Gut Bugs

Good morning,

This week's research gave us a genuinely useful piece of the gut puzzle. Scientists just identified a shared weak spot in E. coli, Shigella, and other bacteria that cause digestive upset — the enzymes they use to break through your gut's protective mucus layer. That mucus layer isn't just a lining. It's your first line of defense, and how well-fed it is depends on what you eat.

Where to begin: Add one serving of a fiber-diverse plant food you don't normally eat this week — a new vegetable, a handful of chia, a scoop of ground flax. Diversity feeds the barrier, not just the bacteria behind it.

Nothing is permanently broken. Nothing. Give your body what it needs, and it will do the rest.

Have a healthy day! 🌿 Luba