Ultimate guide to vitamin b3
The Complete Guide to Vitamin B3, From Deficiency to Optimal Dosage
Dr. Osborne’s Ultimate Guide to Vitamin B3 covers every form, every deficiency symptom, the tests that actually show your true status, and the safe dosage ranges conventional medicine never explains.
this is for
you if:
You deal with ongoing fatigue, brain fog, or mood changes and your doctor has never checked your B vitamin status beyond a basic CBC
You eat a restricted diet, struggle with absorption, or have been told you have celiac disease, gluten sensitivity, or inflammatory bowel disease
You have heard of niacin but have no idea which form to take, how to test for deficiency, or what a safe dose actually looks like for your situation
what's inside
Here's what you get inside this free guide:
- Every form of Vitamin B3 explained — nicotinic acid, niacinamide, nicotinamide riboside, and NMN — what each one does and why the form you choose changes the outcome
- The full list of deficiency symptoms most doctors overlook — from fatigue and poor appetite to skin changes, mouth inflammation, memory problems, and early pellagra signs
- Who is actually at risk — including people with celiac disease, gluten sensitivity, malabsorption, alcohol use, bariatric surgery, and carcinoid syndrome
- The best tests to assess your true B3 status — urinary niacin metabolites, erythrocyte NAD, NAD/NADP markers, tryptophan levels, and intracellular nutritional analysis
- Safe dosage ranges backed by research — the adult RDA, the upper limit, and the clinical context behind higher therapeutic doses so you know what is reasonable for your body
free vitamin b3 ultimate guide
Get the Guide. Know Your Status.
Enter your name and email to get the Ultimate Guide to Vitamin B3 delivered directly to your inbox.