Research
Micronutrients & recovery
Vegetarians have higher bioavailability of L-carnitine from their diet compared to regular red-meat eaters due to adaptive upregulation of intestinal transporters.
If you are vegetarian, your body has likely adapted to absorb carnitine more efficiently from plant sources and endogenous synthesis than meat-eaters. You likely do not need to worry about carnitine deficiency unless you have other specific health conditions.
GoodSupportsHIGH confidence
Bioavailability of L-carnitine in individuals such as vegetarians who are adapted to low-carnitine diets is higher (66% to 86% of available carnitine) than regular red-meat eaters adapted to high-carnitine diets (54% to 72% of available carnitine) [4].
Why this rating
The paper cites specific percentage ranges from studies [4, 113].
Source
Role of carnitine in disease
Judith Flanagan et al. · Nutrition & Metabolism · 2010
DOI 10.1186/1743-7075-7-30
narrative_reviewCited 613×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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