What three nutrients are most critical to improve VO2 max?
Iron, vitamin B12, and vitamin B9 (preferably as methylfolate). These support red blood cell production—get blood work first and only supplement iron when deficient.
Video Summary
Start by checking and correcting iron, vitamin B12, and vitamin B9 (use methylfolate). Only supplement iron if blood work shows deficiency; prefer heme iron.
Move throughout the day (short walks, active recovery) to boost circulation and support red blood cell delivery.
Fuel smart: on hard days eat 30–60 g fast carbs pre-workout and ~30 g carbs/hour during; electrolytes (sodium) on moderate days.
Choose a training vehicle that engages more muscle groups for higher VO2 potential, but prioritize activities you enjoy for consistency.
Use a mix of easy zone 2 work, strides, intervals (400–1600m), tempo/threshold runs, and long runs—rotate interval types and progress gradually (5% ceiling rule).
Iron, vitamin B12, and vitamin B9 (preferably as methylfolate). These support red blood cell production—get blood work first and only supplement iron when deficient.
Consume 30–60 g of fast-digesting carbs before hard sessions and roughly 30 g of carbs per hour during. Avoid high-fat or high-fiber pre-workout meals; use electrolytes on moderate days.
Activities that use more muscle mass (e.g., cross-country skiing) produce the highest VO2 responses, but choose a vehicle you enjoy and can do consistently—running is effective but higher injury risk.
Three sessions per week focused on building an aerobic base (zone 2) and progressively introducing harder efforts is sufficient for beginners to improve VO2 max.
Take easy days truly easy, correct overstriding by increasing cadence, rotate shoes every 300–500 miles (own two pairs), prioritize 7–8+ hours of sleep, and progress volume slowly.
Not unless blood tests show deficiencies. B12 and methylfolate are low-risk and helpful; iron supplementation should be guided by lab results and preferably use heme iron if needed.
"It's the single best predictor of how long you live, and a higher VO2 Max means you can push harder before gassing out and recover faster."
VO2 Max is a crucial health indicator, as it predicts longevity and physical endurance.
The ability to increase your VO2 Max differs significantly from optimizing other metrics like heart rate variability (HRV) or resting heart rate, emphasizing the need for specific strategies tailored to enhance it.
"You just need to nail these three things: enough iron, vitamin B12, and vitamin B9."
Ensuring adequate intake of iron, vitamin B12, and vitamin B9 (folate) is fundamental for improving VO2 Max.
Athletes often face deficiencies in these nutrients due to high volumes of cardio that deplete red blood cells and minerals through sweat.
Recommended food sources include red meat and spinach for iron, eggs and salmon for vitamin B12, and lentils and asparagus for vitamin B9.
"If you're going to take iron supplements, take heme iron."
While iron supplementation can be beneficial, it’s essential to avoid unnecessary intake since excess can lead to oxidative stress and liver damage.
Vitamin B12 and B9 can be supplemented without risk, and choosing methylfolate over folic acid for vitamin B9 is crucial for better absorption.
"Active recovery is crucial; for me, I walk literally a lot."
Incorporating regular movement into your day, such as walking after meals or every hour, can significantly improve blood circulation.
Encouraging modest activity rather than prolonged sitting can boost cardiovascular output and overall health.
"Most people either eat too much before training and feel sluggish or eat nothing and hit a wall mid-session."
Proper nutrition before, during, and after a workout can significantly influence performance.
On low-intensity days, training fasted is acceptable, while moderate days require electrolytes, such as sodium, to maintain energy and prevent cramping.
It is advisable to consume easily digestible carbohydrates before and during high-intensity workouts, while post-workout meals can be richer in fiber and fats.
"Should you run, bike, swim, or row to improve your VO2 Max?"
Selecting the right exercise type plays a critical role in improving VO2 Max, as different activities engage various muscle groups.
High muscle engagement raises cardiovascular demand; hence cross-country skiing, which utilizes most muscle groups, produces the highest recorded VO2 Max levels.
Running is the most convenient and stimulating for cardiovascular health, but it comes with higher injury risks compared to cycling or rowing, which are gentler on joints.
"Pick what you genuinely enjoy because the best vehicle is the one you'll show up to consistently."
Long-term fitness success relies on consistency, which often stems from choosing enjoyable activities.
Incorporating enjoyable workouts like pickleball can help maintain heart rates in the desired range while making the exercise feel less like a chore.
"For zone two easy days, use whatever you enjoy that keeps your heart rate in the right range without beating your body up."
"Every workout you'll ever do for VO2 max is going to be one of these."
"This is often known as your zone two cardio."
"Strides are 20-second bursts at fast effort tacked onto the end of the easy run."
"These are short, hard, repeated efforts with full recovery between each set."
"A tempo run is a sustained hard effort at your goal marathon pace."
"This training is either extended zone two training or an extended hard effort training depending on the week."
"As a beginner or if you're just trying to maintain your cardio, just three days a week will improve your VO2 max."
"If you're advanced and looking to purely maximize VO2 max, you need to get tested and get your training personalized."
"On day 1, 3, and 5, Vinton will do his easy cardio for 90 minutes to 2 hours at a 6:50 minute mile pace, and he'll also do 10 sets of strides after his easy runs."
Vinton’s training program consists of a structured weekly schedule focused on various aspects of running. His easy cardiovascular workouts are designed to strengthen his aerobic base while maintaining a moderate pace.
Additionally, Vinton incorporates strides after his easy runs, which helps in improving running efficiency and speed.
"On day 2, Vinton will work purely on his anaerobic battery, alternating between 10 sets of 400 meters and 8 sets of 800 meters at his anaerobic capacity pace."
"On day 4, Vinton will do a threshold run at a minute mile pace for 30 to 40 minutes."
"In week 2, Vinton will do three sets of 1-mile repeats at a 4:48 minute mile pace."
"One bad injury can wipe out six weeks of hard work."
Preventing injuries is critical for maintaining consistent training. All the beneficial training strategies will be ineffective if Vinton cannot remain injury-free.
The focus on injury prevention emphasizes the importance of a solid recovery strategy and consistent training volumes.
"Take your easy days actually easy; it's important to take your zone 2 days really easy."
"Most runners overstride, which increases impact force by up to 30%."
"Before a run, you only want to do dynamic warm-ups."
A proper warm-up routine involves dynamic stretches that prepare the muscles for running, improving performance and reducing the likelihood of injury.
Post-run, static stretching is crucial to enhance flexibility and mitigate soreness.
"Replace shoes every 300 to 500 miles and have two pairs for rotation."
"Athletes sleeping less than seven hours a night are 1.7 times more likely to get injured than those sleeping eight or more hours."
"Sleep at the same time every single night."
"The athletes who have VO2 max scores in the 80s to 90s are world-class cross-country skiers who average 20 hours a week of training."
Training volume plays a decisive role in achieving a high VO2 max; however, for most individuals balancing life and other commitments, reaching these hours is unrealistic and could lead to negative effects on overall health.
It's essential for athletes to frame their training around their life and other health parameters instead of focusing solely on maximizing one metric.
"Set your ceilings based on your life and what season you're in and follow the 5% progression rule of your ceiling."