Jeffery Nutrition

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Tillsonburg, ON
Jeffery Nutrition

Specializing in general and sports nutrition. Recognizing your health and fitness goals and helping you get there.

Aaron Jeffery is a Certified Sports Nutritionist with the International Society of Sports Nutrition (CISSN), and received his Medical Sciences BSc degree from Brock University. He is competing as a professional athlete in mixed martial arts and other combat sports.

12/04/2025

Can beets improve your performance?

Beets are high in nitrates, which boost nitric oxide, improving blood flow and oxygen efficiency.
Most studies show improvements in endurance, time-to-exhaustion, repeated sprints, and time trials. Usually 1–2% in well-trained athletes, and even more in recreational athletes.
Best dose: 300–600 mg nitrate, 2–3 hours pre-training.
Cheap, easy, legal performance booster.
(Plus you get some extra micronutrients.)

11/27/2025

When someone asks me for some of my food.

11/24/2025

Lifting benefits your brain, too. 2018 meta-analysis finds resistance training significantly reduces depressive symptoms across almost every population.

11/20/2025

Still rings true

11/13/2025

What is, or is not, in your creatine gummies?

11/07/2025

Up to half of sports supplements may be tainted.
A new review found 14–50% of tested products contained undeclared or banned substances, even ones marketed as “natural” or “clean.”
Protect yourself:
– Choose third-party certified brands
– Check ingredients carefully
– Remember: “more” isn’t always better
Source: Jagim et al., 2023 (PMC10570429)

11/05/2025

Sparring burns more than you think.
Most calorie trackers only measure movement, not impact.
A 2018 study on pro rugby players found that when collisions were added to training, their total energy burn jumped ~1,200 calories over 5 days…
That’s roughly +250 calories per day, just from the hits.
Why? Because impact = muscle damage, inflammation, and extra recovery cost.
Your body has to work harder to repair tissue, even when you’re resting.
So if you’re doing hard sparring or heavy grappling days, don’t underfuel.
Add 200–300 extra calories, mostly from carbs, and keep protein high (2g/kg).
Your recovery and performance will thank you.
Fighters aren’t just burning calories from training, they’re burning from getting hit.
Fuel for that too.

11/03/2025

What a time to be alive

10/28/2025

That checks out

10/24/2025

Doomers want you to think the world is coming to an end and so is your testosterone

10/23/2025

Only meal that ever looks nice.

10/22/2025

43% drop in peanut allergy In children introduced at a younger age. 🥜

Address

Tillsonburg, ON

Website

http://jefferynutrition.com/

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