Glucosamine Sulfate

Joint & Recovery

Cartilage building block. Most evidence supports the sulfate form for knee osteoarthritis with months of consistent use.

jointsosteoarthritiscartilage

Typical dose

1500 mg daily

Evidence

Moderate (some RCTs)

Onset time

Cumulative: 8–24 weeks

Half-life

—

Forms

Capsule, Tablet

Source

marine

Best taken with

with food

Best time of day

any

Bioavailability

3/5

Safety rating

4/5

Price per serving

$0.25

Vegan / GF / 3rd-party

✗ / ✓ / ✓

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Vetted brands, third-party testing, ships worldwide.

Common uses

• Knee osteoarthritis
• Joint pain
• Cartilage support

Effect profile

Strength

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Muscle

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Energy

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Focus

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Mood

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Sleep

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Immunity

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Recovery

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Longevity

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Common side effects

• Mild GI upset
• Headache

Avoid if

• Shellfish allergy
• Diabetes (mild glucose effect)

Drug interactions

• Warfarin (mild)
• Acetaminophen

Related joint & recovery supplements

Glucosamine Sulfate vs Curcumin (with Piperine)Glucosamine Sulfate vs MSM (Methylsulfonylmethane)

Medical disclaimer

SupplementDuel is for educational purposes only and is not medical advice. Consult a physician before starting, stopping, or combining supplements.