Lysine
Amino Acid
Lysine at a glance
- Category
- Amino Acid
- Commonly found in
- Dietary supplements, Protein powders, Fortified foods
- Diets reviewed
- 26 diets
What is Lysine?
Lysine is one of the nine essential amino acids that the human body cannot synthesize, thus it must be obtained through diet. It plays a vital role in protein synthesis, hormone production, and the absorption of calcium. It is commonly found in foods such as meat, eggs, dairy products, and some plant-based sources like soy and legumes.
Diet Compatibility
Lysine is an essential amino acid and may be derived from corn-based materials; please contact the manufacturer for details.
Learn more →Lysine can come from either animal or plant sources. If the label does not provide a source, we recommend calling the manufacturer.
Learn more →Lysine can come from either animal or plant sources. If the label does not provide a source, we recommend calling the manufacturer.
Learn more →Lysine can come from either animal or plant sources. If the label does not provide a source, we recommend calling the manufacturer.
Learn more →Lysine can come from either animal or plant sources. If the label does not provide a source, we recommend calling the manufacturer.
Learn more →This ingredient is generally considered compatible with a Barley Free diet.
Learn more →This ingredient is generally considered compatible with a Dairy Free diet.
Learn more →This ingredient is generally considered compatible with a Egg Free diet.
Learn more →This ingredient is generally considered compatible with a Fish Free diet.
Learn more →This ingredient is generally considered compatible with a Garlic Free diet.
Learn more →This ingredient is generally considered compatible with a Gerd diet.
Learn more →This ingredient is generally considered compatible with a Gluten Free diet.
Learn more →This ingredient is generally considered compatible with a Lactose Free diet.
Learn more →This ingredient is generally considered compatible with a Fodmap diet.
Learn more →This ingredient is generally considered compatible with a Lupin Free diet.
Learn more →This ingredient is generally considered compatible with a Milk Free diet.
Learn more →This ingredient is generally considered compatible with a Nightshades diet.
Learn more →This ingredient is generally considered compatible with a Oat Free diet.
Learn more →This ingredient is generally considered compatible with a Onion Free diet.
Learn more →This ingredient is generally considered compatible with a Peanut Free diet.
Learn more →This ingredient is generally considered compatible with a Rye Free diet.
Learn more →This ingredient is generally considered compatible with a Sesame Free diet.
Learn more →This ingredient is generally considered compatible with a Shell Fish Free diet.
Learn more →This ingredient is generally considered compatible with a Soy Free diet.
Learn more →This ingredient is generally considered compatible with a Tree Nut Free diet.
Learn more →This ingredient is generally considered compatible with a Wheat Free diet.
Learn more →Compatibility ratings are general guidelines and may vary by individual. Always consult a healthcare professional for personalized dietary advice.
Why People Avoid Lysine
People following a corn-free diet may avoid lysine if it is derived from corn-based sources. Lysine supplements and some fortified foods may use lysine produced from corn fermentation. As such, it's advised to contact manufacturers to confirm the source of lysine if corn allergy or avoidance is required.
This information is for educational purposes only and should not be considered medical advice. Individual reactions can vary. Consult a healthcare professional if you have concerns about specific ingredients.
Foods That Commonly Contain Lysine
Browse products that match your diet.
Explore ProductsFrequently Asked Questions
How Spoonful reviews ingredients
- Evidence-based. Diet compatibility ratings are compiled from peer-reviewed nutrition guidance, dietary association recommendations, and ingredient composition data.
- Continuously updated. Our ingredient database is refreshed as new sources and product data become available.
- Transparent uncertainty. When an ingredient's safety depends on serving size, preparation, or sub-ingredients, we mark it “caution” rather than forcing a binary answer.
- Not medical advice. Ratings are general guidance. Always consult a registered dietitian for personalized recommendations.
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