Vitamin B3

Vitamin B3 is made as a chemical product for food and feed, not recovered from another food process. Manufacturers convert pyridine compounds into niacin or niacinamide, purify the product and sell it as crystals.^7,8

1. 01 // Source Pyridine starting material One industrial route begins with 3-methylpyridine, also called 3-picoline.
2. 02 // Process Chemical conversion The route converts 3-picoline to 3-cyanopyridine, then hydrolyzes it to niacinamide or nicotinic acid.
3. 03 // Process Purified Manufacturers separate and purify the vitamin into a concentrated crystalline ingredient.
4. 04 // Output Vitamin crystals Niacin or niacinamide powder arrives ready to be measured into a feed premix.

1. 01

   Meets the vitamin target

   Added niacin helps the finished food meet its nutrient target. Dogs also obtain niacin from other ingredients and make some from dietary tryptophan.^5,6

2. 02

   Delivers a measured dose

   A concentrated crystalline ingredient, nearly pure vitamin, lets manufacturers measure a small addition into a premix before distributing it through the recipe.⁷

3. 03

   Supplies feed at scale

   Chemical production supplies the wider feed industry. A synthesis review reports that most nicotinic acid produced for the markets it examined went to feed.⁸

4. 04

   Keeps formulation predictable

   A purified source gives formulators a measured niacin input when the amounts supplied by other ingredients differ between recipes.⁷

How much AAFCO sets a minimum of 13.6 mg/kg niacin in complete dog food on a dry matter basis; it does not specify an added amount.⁵

1. Vets say

   Niacin prevents black tongue in deficient dogs

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   A dog feeding study found that nicotinic acid corrected black tongue caused by a deficient diet. That supports meeting the requirement. It does not support adding extra niacin to an adequate food.^1,6

2. Brands say

   Extra niacin improves a dog's skin barrier

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   In a 12-week study, a blend containing niacinamide and 4 other nutrients reduced skin water loss after 9 weeks. The brand-affiliated study did not test niacinamide alone, so it cannot show this claim.²

3. Brands say

   Extra niacin boosts energy and endurance

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   A 10-dog performance study tested a supplement containing niacin alongside several other ingredients. The supplemented group performed better, but the study cannot identify niacin's effect or show that extra B3 boosts ordinary dogs.⁴

4. Owners say

   Niacin in kibble lowers a dog's cholesterol

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   Seven dogs received 1,000 mg of nicotinic acid daily for 42 days without a separate control group. LDL fell, but total cholesterol did not. This high-dose pill study does not support a claim about kibble.³

5. Critics say

   Vitamin B3 is just filler

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   AAFCO sets a niacin minimum of 13.6 mg/kg, on a dry matter basis, for complete dog food of any format. The ingredient supplies a required vitamin at a small dose; it is not there to add bulk.^5,6