You're Not Tired. You're Depleted - Aleksandra Duba

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You are not tired.
Your cells are short of fuel.

Why smart NAD+ management outperforms simply taking supplements.

You have tried supplements. You have spent money. And you are still exhausted.

Here is the truth no one in the supplement industry wants you to discover:
increasing NAD+ intake without knowing how the body actually uses it is like putting premium fuel into an engine that is already broken. No matter how much you add, the engine will not run properly until the real problem is fixed.

This book will fix your energy supply.

Aleksandra DubaAuthor
Author Aleksandra Duba

The main reason why your energy-boosting supplements do not work

A certain molecule is present in every cell of your body. Without it, those cells would die. It helps regulate energy levels, metabolism, chemical activity in the brain, skin health, the immune system, stress hormones — in short, simply everything.

It is called NAD+. And before you reach the age of 40, you will have already lost as much as half of its reserves. It gets worse. Every infection, every stressful week, every sleepless night, every drink — the body uses NAD+ to cope with it. The more life demands of you, the faster NAD+ is depleted.



That is exactly why you feel the way you feel:

Fatigue that does not go away, no matter how much you sleep. Brain fog that appears at midday. Weight that refuses to budge. A mood that simply feels flat.

These are not separate problems. They are all the same problem — and this book is the first comprehensive guide to solving it.

The cover of the book You're Not Tired. You're Depleted.
Aleksandra Duba with her book

Where the supplement industry gets it wrong

Most NAD+ products are promoted around one idea: take this, raise your levels, feel better.

It does not work that way. Scientific research confirms this.
In reality, it is not only the level of NAD+ that matters — what matters is the ratio of NAD+ to its partner molecule, NADH. This ratio is the true indicator of how effectively your cells produce energy. With any supplement available on the market, you can raise your NAD+ level and still have a completely dysfunctional cellular “engine” running in the background.


That is exactly the reason why so many people spend hundreds of dollars on supplements and feel no effects at all.

This book is the first guide that explains what actually needs to be measured — and what you should actually do about it.

This book does not just tell you what to take. It also explains why.

You will learn:

Why the body uses up NAD+ faster than it can be replenished

and the specific factors that most people do not even think about

Why people who often diet frequently feel worse after starting NAD+ supplementation

and what should be done instead

Why low NAD+ levels often first manifest as depression

before any physical symptoms appear

The hidden cost of high-dose supplementation

when taking too much quietly depletes the resources your body needs for hormone production, mood regulation, DNA repair and liver health

A protein called CD38 that literally “eats” NAD+

and a natural compound that slows this process down

How the body rebuilds NAD+ levels on its own

and why protecting this system is more important than any pill

The front of the book

The most reliable supplement comparison you will ever read

There are six main NAD+ precursors available on the market. Each of them is advertised as the best. They are not, however, the same. Choosing the wrong one for your situation can worsen your health.

Niacin

the oldest form, with a proven beneficial effect on the heart and cholesterol levels, but in high doses it is associated with a real risk that you need to know about.

Nicotinamide (niacinamide)

a gentler option, good for people with blood sugar problems, but in high doses it comes with certain trade-offs.

NR (nicotinamide riboside)

the best-studied of the newer supplements, with a proven safety profile.

NMN (nicotinamide mononucleotide)

popular and increasingly well studied; the book explains exactly how it enters cells and what this means for its effectiveness.

NMNH

the most powerful precursor currently available, but it changes cellular chemical processes in a way that is not suitable for everyone.

5-Amino-1MQ

works differently from all the others, by blocking an enzyme that wastes NAD+ building blocks. It is still in the early stage of human research, but the results so far are impressive.

The chapter on NAD+ injections and IV drips alone is worth the price of the whole book.

Most clinics will not tell you that the effect resets. That there are risks to the immune system. That your body has a built-in mechanism that limits how long each infusion works. This book tells you about it.

Aleksandra Duba and the front of the book

A complete system that really works

NAD+ is the foundation. But it does not work in isolation. This book presents the full picture of what works together with it — and exactly why:

Creatine|Coenzyme Q10|PQQ|Magnesium|Acetyl-L-carnitine|Glycine|Choline|Vitamin D

Each is explained in simple language. Each with a specific, scientific justification for why it matters – not just that it “adds energy”. You will understand how each one works, how it is connected to NAD+ and whether you actually need it.

You will also receive a practical list of blood tests worth monitoring — so you will not be guessing. You will be measuring.

After reading this book, you will know exactly what to do

No more guesswork. No more money wasted on supplements that do not fit your situation. No more feeling that the information is too complicated to act on.

What is really happening in your cells

in language that finally makes sense

The difference between having more NAD+ and actually using it

What to test, what to combine, what to avoid and when more really does not mean better

How to build a body that uses NAD+ the way it should

Backed by more than 95 peer-reviewed studies published in Cell Metabolism, Nature Reviews, Science and Nature Communications. This is not wellness content. This is cell science — made available to the general public for the first time.

You are not tired because you are ageing.

You feel exhausted because your cells are beginning to run out of the one molecule that makes everything else possible. This book will give it back to you — intelligently.

On sale now. Start reading today.

The book is educational in nature and does not constitute medical advice or a substitute for it. Any supplement-related interventions should be discussed exclusively with a doctor.

About the author

A former IFBB PRO athlete, today longevity and cellular health are her speciality — Aleksandra combines a decade of experience at the intersection of competitive sport, functional nutrition and cellular health. She was educated at Harvard Medical School, Harvard University Executive Education, The International Society for Stem Cell Application and through the Root Cause Protocol, and is also a member of the SSRP Institute. She now translates this knowledge into practical science that people can truly use.

As the person behind the Biolab brand, she creates laboratory-tested supplement formulas based on the molecular foundations of energy, ageing and cognitive performance. Her current area of interest is neuroscience and long-term brain health.
For years, Aleksandra has been looking for answers to the questions her clients ask her: Why am I constantly tired? Why is my metabolism not responding? Why am I doing everything right — and still feeling bad?

She did not find the answers in any supplement. She found them in the science that most supplement companies never talk about. She works with clients across Europe.
“You're Not Tired. You're Depleted.” is her first book. Because intelligent supplementation does not begin with what you take. It begins with understanding — why.




The author presenting her book
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Print edition, English-language version

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