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NOW Foods - Double Strength L-Lysine 1000 mg

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NOW Foods

Double Strength L-Lysine 1000 mg

B grade
79/100
SUPPIE SCORE
80/100
EFFICACY
Low
SAFETY
70/100
CLEANLINESS

What Does Double Strength L-Lysine 1000 mg Do?

This double-strength L-Lysine supplement offers a solid 1000 mg dose supported by research for immune and collagen benefits, with excellent bioavailability. It's highly safe for most adults, backed by GMP quality, though those with kidney issues should consult a doctor.
What are the benefits of L-Lysine for immune health?
How does L-Lysine support collagen synthesis?
Is 1000 mg of L-Lysine a suitable daily dosage?
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What Are the Benefits of Double Strength L-Lysine 1000 mg?

Based on proven scientific research

Immune Function SupportStrong
Collagen SynthesisStrong
Herpes Simplex Virus ManagementModerate
Bone HealthModerate

Good For:

What Are the Side Effects of NOW Foods Double Strength L-Lysine 1000 mg?

Always consult your health practitioner if in doubt.

RiskLow Risk

Overview

L-Lysine at 1000 mg daily is generally safe for healthy adults, with no major side effects reported in studies from NIH and PubMed sources.
Potential mild gastrointestinal upset or diarrhea may occur at higher doses, but this formulation's dosage aligns with safe limits (up to 3000 mg/day).
May interact with calcium absorption, so caution advised for those with kidney issues or on calcium supplements; no significant drug interactions for most users.
Suitable for pregnancy and breastfeeding at moderate doses per WebMD, but consult a doctor; not recommended for children under 18 without medical advice.
Vegetarian/vegan formula free of common allergens like wheat, gluten, soy, milk, egg, fish, shellfish, and tree nuts, produced in GMP facility.
Long-term use is considered safe, but monitor for hyperlysinemia risks in rare genetic conditions; quality tested in USA with global ingredients.

Potential Side Effects

Negative Interactions

Inactive Ingredients

Microcrystalline cellulose
Low Risk
Silicon dioxide
Low Risk
Stearic acid (vegetable source)
Low Risk
Vegetarian coating
Low Risk
Croscarmellose sodium
Low Risk
Magnesium stearate (vegetable source)
Low Risk

What Are the Ingredients in NOW Foods Double Strength L-Lysine 1000 mg?

L-Lysine
1,000 mg
Microcrystalline Cellulose
Silicon Dioxide
Stearic Acid (vegetable source)
Vegetarian Coating
Croscarmellose Sodium
Magnesium Stearate (vegetable source)

Frequently Asked Questions

Common questions about NOW Foods Double Strength L-Lysine 1000 mg