Creature Feast | Chicken / Vitamin D / Best Foods
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Best Vitamin D-Rich Foods for Chickens

Ranked by vitamin d content among foods safe for chickens in the Creature Feast catalog.

#1
Sunflower Seeds per 100g: 51g fat (supports D3 absorption, no direct D3 content) While sunflower seeds do not contain preformed Vitamin D3, their high fat content is essential for absorbing the D3 that chickens synthesize from sunlight via their preen gland oil. A diet lacking adequate fat will impair D3 utilization even in free-range flocks with ample sun exposure.
#2
Oats per 100g dry: 7g fat, 410mg phosphorus (supports D3 metabolism) Oats support Vitamin D metabolism indirectly through their fat and phosphorus content. Phosphorus works alongside Vitamin D in bone mineralization, so adequate phosphorus from oats helps the D3 that chickens obtain from sunlight and feed work more effectively.
#3
Pumpkin per 100g raw: 0.1g fat, 426mcg RAE Vitamin A (supports fat-soluble vitamin pathways) Pumpkin provides fat-soluble carotenoids that share absorption pathways with Vitamin D, and its moderate fat content aids in D3 uptake. While not a direct D3 source, pumpkin supports the overall fat-soluble vitamin status that keeps calcium metabolism running smoothly in laying hens.
#4
Corn per 100g: 4.7g fat (supports D3 absorption from feed) Corn's fat content supports absorption of Vitamin D3 from feed and sunlight synthesis. In confined flocks dependent on dietary D3 rather than sunlight, ensuring adequate fat intake from sources like corn helps maximize the D3 already present in commercial layer feed.
#5
Lentils per 100g cooked: 180mg phosphorus, 36mg magnesium (supports D3 function) Lentils contribute phosphorus and magnesium that work synergistically with Vitamin D in bone mineralization and calcium transport. For laying hens, this mineral support helps D3 do its job of directing calcium into eggshells and medullary bone reserves.