What is Nature Made L-Lysine 1000 mg?

Nature Made L-Lysine 1000 mg is a high-potency essential amino acid supplement that supports immune function, collagen production, and helps the body absorb calcium. Each tablet delivers 1,000 mg of L-Lysine, a building block of protein the body cannot produce on its own.

It’s especially popular for managing cold sore outbreaks, supporting tissue repair, and maintaining strong bones. Nature Made formulates its products in a USP-verified, GMP-certified facility in the USA.

📦 Quick Product Overview

💪 What Are the Benefits of L-Lysine?

L-Lysine is an essential amino acid involved in:

• Tissue repair 
• Immune function 
• Calcium absorption 
• Enzyme and hormone production 
• Collagen synthesis 

🧪 Full Ingredient Profile

🚫 Free from gluten, artificial colors, synthetic dyes, preservatives, and yeast.

💊 How to Use Nature Made L-Lysine

Suggested Use

• Take 1 tablet daily, preferably with a meal 
• For cold sore support: 1,000–3,000 mg/day may be used short-term 
• Can be taken long-term as part of an immune or bone health routine 

Pro Tips

• Take with vitamin C or zinc for enhanced immune response 
• Do not chew tablets; swallow with water 
• Store in a cool, dry place 

⚠️ Side Effects of L-Lysine

L-Lysine is well tolerated by most adults. Side effects are uncommon and mild.

Mild Side Effects

• Stomach discomfort or nausea 
• Diarrhea 
• Bloating (with high doses) 

Who Should Use Caution?

• People with kidney or liver disorders 
• Pregnant or breastfeeding women (consult healthcare provider) 
• Those on calcium or iron supplements (due to absorption interactions) 

🚫 Overdose Symptoms

High doses over 3,000–6,000 mg/day may cause:

• Abdominal cramps 
• Gallstone risk (with long-term overuse) 
• High calcium levels if combined with calcium supplements 
• Increased ammonia (in those with liver disease) 

⚠️ Stick to 1,000 mg/day unless otherwise instructed by a healthcare provider.

FAQs

What is L-Lysine 1000 mg used for?

L-Lysine 1000 mg supports immune health, helps prevent cold sores, and promotes collagen and calcium absorption for bone and skin health.

Can I take L-Lysine every day?

Yes. L-Lysine is safe for long-term daily use, especially at 1,000 mg per day. Higher doses may be used short-term for cold sore management.

Is L-Lysine good for cold sores?

Yes. Clinical studies show L-Lysine reduces frequency and severity of herpes simplex virus (HSV-1) outbreaks.

Is Nature Made a good brand?

Yes. Nature Made is USP Verified, GMP-certified, and known for clean-label, affordable supplements made in the USA.

Can L-Lysine be taken with other supplements?

Yes. It stacks well with zinc, vitamin C, probiotics, and immune support formulas. Avoid pairing with arginine-rich supplements (e.g., nuts) if managing cold sores.