Gary Brecka Biohacking Supplement Guide To Better Health
Discover the supplements Gary Brecka recommends for energy, recovery, brain health, longevity, sleep, muscle growth, and optimal performance.
Quick answer
Gary Brecka's approach to better health starts with finding and correcting common nutrient gaps. On the High Performance podcast he highlights vitamin D3, vitamin B12, essential amino acids, protein, collagen and creatine, along with checking hormone markers like DHEA. He pairs these with simple daily habits: sunlight, movement, quality sleep and steady blood sugar.
Who is Gary Brecka?
Gary Brecka is a human biologist and longevity expert known for his work on nutrient deficiencies, metabolism and performance. In a recent appearance on the High Performance podcast, he explained how hidden gaps in key nutrients may be behind problems many people put up with for years: low energy, brain fog, poor recovery, broken sleep and stubborn weight gain.
His message is simple. Your body can't run at its best if it's missing the raw materials it needs to make energy, regulate hormones, repair tissue and recover. Rather than chasing symptoms, he focuses on identifying what the body is lacking and restoring it through nutrition, targeted supplements and daily habits.
Below, we break down the supplements and nutrients he discusses, what each one does, and how to choose a quality option in Australia.
Gary Brecka's approach to health
Gary's philosophy comes down to three ideas:
- Find and correct hidden deficiencies. Test, don't guess, so you know what your body is actually missing.
- Support the body at a cellular level. Give cells the nutrients they need to produce energy and repair.
- Build simple, science-backed habits. Morning sunlight, regular movement, good sleep and balanced blood sugar.
Gary Brecka's recommended supplements at a glance
| Supplement | Why Gary highlights it | Key benefits |
|---|---|---|
| Vitamin D3 | One of the most common deficiencies linked to fatigue | Immune health, energy, mood, bone health |
| Vitamin B12 | Low levels can leave you tired even after a full night's sleep | Energy production, nervous system, red blood cells |
| DHEA | A key marker to check when energy and hormones are low | Hormone production, vitality, healthy ageing |
| Essential amino acids | Part of his own daily routine | Muscle recovery, protein synthesis, lean muscle |
| Protein | Essential for maintaining muscle as you age | Muscle maintenance, satiety, recovery |
| Collagen | Popular, but he explains how it really works | Skin, joints, connective tissue, hair and nails |
| Creatine | "More than a muscle supplement" | Strength, brain energy, ATP production, healthy ageing |
1. Vitamin D3: the deficiency linked to fatigue and low energy
Gary highlights vitamin D3 as one of the most common nutrient deficiencies linked to fatigue and poor energy. Vitamin D acts more like a hormone than a typical vitamin, playing a role in immune function, hormone production, mood and energy metabolism. Even in sunny Australia, many people who work indoors, cover up or live in southern states don't get enough sun to maintain healthy levels year-round.
Benefits of vitamin D3:
- Supports healthy immune function
- Helps maintain mood and energy
- Supports healthy hormone function
- Helps calcium absorption for bone health
Tip: Vitamin D3 is often paired with vitamin K2, which helps direct calcium to the bones. A simple blood test from your GP will tell you where your levels sit.
Shop all vitamin D supplements
2. Vitamin B12: energy production and oxygen transport
Vitamin B12 is essential for energy production and for making the red blood cells that carry oxygen around the body. Gary explains that low B12 is one of the main reasons people wake up tired even after a full night's sleep. Vegans, vegetarians, older adults and people taking certain medications are more likely to run low.
Benefits of vitamin B12:
- Supports natural energy production
- Supports healthy nervous system function
- Helps reduce tiredness and fatigue when levels are low
- Supports red blood cell formation
Tip: Look for the active form, methylcobalamin, which the body can use directly.
3. DHEA: a hormone precursor worth checking
DHEA (dehydroepiandrosterone) is a hormone precursor made naturally by the adrenal glands. The body uses it to make other hormones, and levels naturally decline with age. Gary discusses DHEA as an important marker to check when looking into hormone balance, low energy and recovery.
DHEA in Australia
In Australia, DHEA is a prescription-only medicine and isn't sold as an over-the-counter supplement. If you're concerned about your hormone levels, ask your GP or integrative doctor about testing. They can advise whether treatment is right for you.
4. Essential amino acids: the building blocks of protein
One of the first supplements Gary mentions in his own routine is a full-spectrum essential amino acid (EAA) formula containing all nine essential amino acids. These are the amino acids your body can't make on its own, so they must come from food or supplements. They're needed for muscle repair, tissue recovery, neurotransmitter production and metabolic health.
Benefits of essential amino acids:
- Support muscle growth and recovery
- Support protein synthesis
- Help maintain lean muscle mass
- Support training recovery and performance
5. Protein: maintaining muscle as you age
Gary stresses the importance of eating enough protein to maintain muscle, support recovery and metabolic health, and age well. All protein, whether from food or a shake, is broken down into amino acids that the body uses for repair and rebuilding. Hitting your daily target from food alone can be hard, which is where a quality protein powder helps.
Benefits of protein:
- Supports muscle maintenance
- Helps you feel fuller for longer
- Supports recovery after exercise
- Supports healthy ageing and body composition
6. Collagen: what it really does for skin and joints
Gary challenges the common belief that eating collagen directly builds collagen in your body. Collagen is broken down into amino acids, and the body then uses them wherever they're needed. It's still a popular and useful supplement, especially for skin, joints and connective tissue, because it supplies amino acids like glycine and proline that the body uses to make its own collagen.
Benefits of collagen:
- Supports skin elasticity and hydration
- Supports joint and connective tissue health
- Supports healthy hair and nails
- Provides amino acids for tissue repair
7. Creatine: more than a muscle supplement
Gary calls creatine one of the most underrated supplements for overall health, energy and cognitive performance. While it's best known in the gym, creatine plays a central role in energy production in cells throughout the body, including the brain.
Creatine helps regenerate ATP (adenosine triphosphate), the main energy currency of your cells. That means it supports not just strength and muscle recovery, but also mental energy and healthy ageing. Gary says it's especially valuable for people under stress, those who train regularly, and older adults who want to stay strong and sharp.
Benefits of creatine:
- Supports muscle strength, power and recovery
- Supports brain energy and cognitive performance
- Supports ATP and cellular energy production
- Supports healthy ageing
Typical daily dose: 3–5 grams of creatine monohydrate per day, taken consistently. There's no need to "load".
Watch: Gary Brecka on diet myths, creatine and what blood tests don't show
Frequently asked questions
What supplements does Gary Brecka recommend?
In his High Performance podcast interview, Gary Brecka highlights vitamin D3, vitamin B12, essential amino acids, protein, collagen and creatine, and discusses DHEA as a hormone marker worth checking. His focus is on correcting deficiencies first, ideally guided by blood testing.
Why does Gary Brecka focus on vitamin D and B12?
He sees low vitamin D3 and B12 as two of the most common reasons people feel tired, foggy and run down. Vitamin D supports immune, hormone and energy function, while B12 is needed for energy production and healthy red blood cells.
Can I buy DHEA in Australia?
No, not over the counter. DHEA is a prescription-only medicine in Australia. Speak to your GP or integrative doctor if you'd like your DHEA levels tested or want to discuss treatment.
How much creatine should I take per day?
Most research uses 3–5 grams of creatine monohydrate daily. Take it consistently at any time of day; a loading phase isn't necessary.
Are essential amino acids better than protein powder?
They do different jobs. Essential amino acids are quickly absorbed and light on calories, which makes them handy around training. Protein powder provides more total protein to help you reach your daily target. Many people use both.
Should I get a blood test before taking supplements?
It's a good idea, and it's central to Gary Brecka's approach. A blood test from your GP can show whether you're low in nutrients like vitamin D, B12 or iron, so you can choose supplements that address what your body actually needs.
