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Efficacy Tier (Bioavailability) Tier 1: High absorption, body-ready forms
Tier 2: Moderate absorption, 1-2 conversion steps
Tier 3: Low absorption, 3+ conversion steps

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Use the filters below to find ingredients by type, nutrient category, or bioavailability tier.

Dietary Category (Type) The broad type of ingredient: Vitamins, Minerals, Herbs & Botanicals, etc.

Primary Category (Nutrient) The common nutrient name grouping all its chemical variants (e.g., "Magnesium")

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Showing 2 ingredients

Probiotics (Bifidobacterium lactis HN019)

Probiotics

Specialty Compounds

Inside: Harmless Specialty Compounds Inside Body

Probiotics (Lactobacillus rhamnosus GG)

Probiotics

Specialty Compounds

Inside: Harmless Specialty Compounds Inside Body