Kat Fu

My long-term test results show how I reached and maintained optimal vitamin D levels over multiple winters.

Vitamin D Protocol: 5 Fixes I Learned in 5 Years of Testing

This step-by-step guide reveals my vitamin D protocol after five years of tracking. I cover how much vitamin D3 you should take daily, why sunlight alone isn’t enough, and what optimal vitamin D levels actually look like—plus the exact mistakes that kept my levels low. Backed by test results and years of refinement, this is your shortcut to a smarter, seasonal strategy.

Vitamin D Protocol: 5 Fixes I Learned in 5 Years of Testing Read Post »

Urine fluoride test result with reference ranges, showing elevated fluoride level over 24 hours.

Is Fluoride Bad for You? How It Affects Your Brain, Sleep & Longevity

Is fluoride bad for you? Research suggests it may impact brain function, sleep quality, and longevity by accumulating in the pineal gland, potentially disrupting melatonin production. This article explores fluoride’s effects on cognitive health, sleep cycles, and aging—plus practical steps to reduce exposure and choose the best water filtration system.

Is Fluoride Bad for You? How It Affects Your Brain, Sleep & Longevity Read Post »

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