Creatine Masterclass: Benefits, Myths, Dosage and Loading with Dr Darren Candow

The loading phase is the fastest way to saturate muscles. Dr. Candow notes that muscle creatine stores can be filled in as little as 2–3 days on 20 g, though standard recommendation is 5–7 days. He emphasizes that the loading phase is optional and cautions that the two most common side effects are GI distress and a few pounds of water weight, which can alarm some individuals (particularly young females). The osmotic nature of creatine means it pulls water into the GI tract and the muscle. Spreading the 20 g into four 5 g doses throughout the day can mitigate GI issues. He personally uses a relative dosing of 0.1 g/kg for maintenance.

Dr. Candow explains that 95% of the body’s creatine is in muscle, so a 3–5 g dose is largely siphoned by muscle. To get meaningful amounts into the brain and bone, a higher daily intake is likely necessary. He personally takes a minimum of 10 g/day and notices cognitive benefits, especially during travel. He notes that the average omnivore already has 80% muscle saturation from diet; supplementation raises it to ~100%. Vegans, who start at much lower levels, respond most dramatically. For bone, doses below 8 g showed no effect. The idea of microdosing (e.g., 2.5 g multiple times) is currently being studied in his lab to see if it yields similar saturation as a larger single dose.

Dr. Candow states that while overall daily intake is most important, a 1992 study showed muscle contractions open the doorways for creatine, so taking it near exercise is logical. He takes 5 g with Greek yogurt and protein in the morning, and drinks another 5 g during his workout. He also advises that combining with protein is superior to carbohydrates, because the amount of carbs needed to spike insulin enough to enhance creatine uptake is 75–100 grams, which many people don't want. Protein naturally stimulates insulin and adds amino acids, and two studies show greater strength and lean mass gains when creatine is taken with whey protein. He addresses the caffeine myth: only doses above ~250 mg (a large coffee) for prolonged periods might interfere via calcium-mediated mechanisms in muscle, so putting creatine in your regular coffee is fine.

Dr. Candow highlights a recently published study where females who took 5 g/day creatine and exercised gained an extra hour of sleep on the days they trained. He believes this is related to creatine reducing brain inflammation and improving mitochondrial health, allowing quicker neural recovery. This finding fits into the broader narrative that creatine helps during metabolic stress: exercise is a stressor, and creatine may blunt the hyperarousal that can impair sleep. He suggests many people are sleep-deprived and could benefit from this simple addition.

Referencing the German study, Dr. Candow says that 0.35 g/kg creatine improved memory and cognitive function after 21 hours of sleep deprivation, performing similarly to caffeine. The study used MRS to confirm brain creatine accumulation from a single dose. He notes that this is a practical strategy for acute situations, not a daily regimen. Both he and the host have personal experience with high doses for jet lag and sleep deprivation, respectively, and noted subjective benefits. He stresses that the brain is slower to take up creatine than muscle, so a large 'pulse' might be needed to force entry through the limited blood-brain barrier transporters.

Dr. Candow traces the evolution from the late 1990s, when studies were only on young males in the gym, to now including anyone across the lifespan, clinical populations, and even pregnancy. Over 1,000 peer-reviewed studies now exist, with about 35 million people using creatine globally, projected to be 350 million in 10 years. The common denominator is that creatine helps maintain ATP, the energy currency of all cells, not just muscle. This fundamental mechanism means that tissues under high energy demand — brain, bone, immune cells — could also benefit. The brain, which accounts for 20% of daily energy use despite being only 2 kg, is a prime target. The field is now moving 'from the neck up,' looking at depression, anxiety, sleep, and head trauma. The expert’s lab and others are actively studying these new domains, and early results are promising, especially in sleep, mood, and cognition under stress.

Dr. Candow points out that while 3–5 g/day saturates muscle and improves performance, bone is far more stubborn. A Brazilian study using 1–3 g/day without exercise for two years showed no bone benefit. In contrast, work by Dr. Phil Chilbeck used 8–12 g/day for one to two years in older adults doing weight training and walking, and found reduced rate of bone mineral loss around the hip, plus increased bone surface area and strength in the lower limbs. He emphasizes that creatine does not increase bone mineral density per se, but rather slows the rate of loss, which is crucial for those with osteopenia or osteoporosis. He also notes that younger people might bank bone density early with creative supplementation plus lifting, potentially affecting longevity.

Dr. Candow references a German study using MRS (magnetic resonance spectroscopy) that showed a single high dose of creatine could accumulate in the brain and preserve memory and cognition after extreme sleep deprivation. He describes the brain as 'stubborn' compared to muscle because muscle lacks its own creatine synthesis and acts like a vacuum, while the brain synthesizes its own and has limited transporters at the blood-brain barrier. However, when brain creatine levels are taxed by metabolic stress — sleep deprivation, hypoxia, jet lag — supplementation can 'come to the rescue.' He suggests that for university students during finals emergency doctors on night shifts, or travelers crossing many time zones, a high dose could be used acutely. This finding has reignited interest in creatine for brain health and may lead to new protocols for situations of acute cognitive demand.

The original 2006 rugby study had shown a small rise in DHT after a loading and maintenance phase, but never measured hair loss. That single study spawned widespread fear. Dr. Candow says a new study, just out, gave 5 g/day for several weeks, measured DHT, bound and free testosterone, but critically also looked at hair follicle size and number. There was no change. He humorously notes that many prominent creatine researchers are bald (including himself), but that’s genetics, not creatine. He has personally assessed over a thousand people and not one reported hair thinning attributable to creatine. The myth is now busted with direct evidence.

Dr. Candow explains that early thinking rejected creatine for endurance athletes because of potential water weight gain and no direct aerobic energy system involvement. However, studies in soccer, ice hockey, swimming, triathlon, and marathon now show improvements in agility, balance, and reduced muscle damage. A key cellular finding: Ironman participants who loaded creatine for 5 days before a race had significantly lower post-race cytokine elevation, indicating less systemic inflammation. He attributes this to creatine’s anti-catabolic and anti-inflammatory properties. He cautions that a slight decrease in VO2max (2–4%) has been observed in some studies, possibly due to increased body mass from water retention, so endurance athletes might titrate dose. Currently his lab is looking at combat and martial arts as well.