Glutathione
The master antioxidant
- Type
- Master antioxidant
- Typical amount
- Oral doses vary; absorption of intact glutathione is debated, so some formulas use precursors instead.
- Best taken
- As directed on the formula label
- Caffeine
- None
- Main source
- The body produces it; foods such as sulphur-rich vegetables and proteins support its production.
- Evidence level
- Limited / emerging
Glutathione is a small protein the body makes from three amino acids, often called the “master antioxidant.”
What is Glutathione?
Glutathione is a small protein the body makes from three amino acids, often called the “master antioxidant.”
How Glutathione works in the body
It protects cells from oxidative stress and supports detoxification pathways in the liver. In practical terms, this is the mechanism weight-loss formulas are counting on when they include glutathione.
What the research says about Glutathione and weight
Human research on Glutathione specifically for weight is limited or early-stage. Much of the rationale comes from traditional use, lab studies, or its general nutritional role. That doesn’t mean it doesn’t help — only that strong clinical proof for a weight effect isn’t established yet.
How much Glutathione to take
Oral doses vary; absorption of intact glutathione is debated, so some formulas use precursors instead. Always check the label of your specific formula — blends often contain less glutathione than studies use, especially inside proprietary blends that don’t disclose exact amounts.
Food sources and supplement forms
The body produces it; foods such as sulphur-rich vegetables and proteins support its production.
Why Glutathione appears in weight-loss formulas
It appears in liver-support and antioxidant formulas for its central detox and antioxidant role.
Safety, side effects and interactions
Generally well tolerated; oral supplementation is considered safe at typical doses. As with any supplement, if you are pregnant, breastfeeding, taking medication or managing a health condition, check with your doctor first.
How to choose a quality Glutathione supplement
When choosing a Glutathione product or a formula containing it, look for one that discloses the actual amount of glutathione (not just a proprietary-blend total), uses a recognizable form, and is made by a brand with third-party testing or GMP manufacturing. More isn’t always better — match the dose to what research and the label suggest, and be wary of products that hide quantities behind a blend.
The master antioxidant
Glutathione recycles other antioxidants like vitamins C and E, earning its “master” nickname in cellular defence.
Common questions about Glutathione
What does Glutathione do for weight loss?
How much Glutathione should I take?
Is Glutathione safe?
How strong is the evidence for Glutathione?
Will Glutathione alone make me lose weight?
Does the dose in supplements match research?
Supplements with Glutathione
Formulas in the SourceLean directory that list Glutathione or a closely related form among their ingredients:
Related ingredients
Explore other compounds commonly found in weight-loss formulas:
Ingredient insights, explained
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