CARTERˣ — Field Notes
News
Notes, protocols and editorials from the lab. Long reads on training, recovery, and the science behind every system.
education
Caffeine and L-Theanine: The Smart Caffeine Stack
Caffeine alone is a blunt tool. Caffeine paired with L-theanine is the same dose, smoother delivery, and better cognitive output. Research has known this...
education
Branded Ingredients: Why We Use Cognizin and AstraGin
Generic ingredients are cheap. Branded, patented versions are more expensive and come with the clinical research that generics do not. The difference shows up...
foundation
Clinical Dose or Pixie Dust: Why Most Supplements Underdeliver
Half the supplement industry sells real ingredients at fake doses. Once you know the clinical thresholds, the trick stops working.
creatine
Creatine Beyond Muscle: Brain, Aging, and Daily Health
Creatine is the most studied supplement in sports nutrition. The newest research suggests its benefits go well beyond strength and power.
bcaa
The Workout Window: Pre, Intra, and Post Explained
Pre-workout, intra-workout, and post-workout nutrition each address a different physiological window. Understanding the difference is how you stop wasting supplements.
education
Sweat Rate and Sodium: The Hydration Science Most Athletes Miss
Most sports drinks are dosed for office workers, not athletes. Real sweat losses require real sodium. Here is the math.