Holy Basil (Tulsi)
A sacred adaptogen
- Type
- Adaptogen
- Typical amount
- Studies commonly use a few hundred milligrams of leaf extract per day.
- Best taken
- As directed on the formula label
- Caffeine
- None
- Main source
- It comes from the leaves of the holy basil plant, taken as tea or extract.
- Evidence level
- Limited / emerging
Holy basil, or tulsi, is a sacred herb in India (Ocimum sanctum) used as an adaptogen for stress and balance.
What is Holy Basil (Tulsi)?
Holy basil, or tulsi, is a sacred herb in India (Ocimum sanctum) used as an adaptogen for stress and balance.
How Holy Basil (Tulsi) works in the body
It is studied for moderating stress and cortisol and supporting blood sugar and metabolic markers. In practical terms, this is the mechanism weight-loss formulas are counting on when they include holy basil (tulsi).
What the research says about Holy Basil (Tulsi) and weight
Human research on Holy Basil (Tulsi) 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 Holy Basil (Tulsi) to take
Studies commonly use a few hundred milligrams of leaf extract per day. Always check the label of your specific formula — blends often contain less holy basil (tulsi) than studies use, especially inside proprietary blends that don’t disclose exact amounts.
Food sources and supplement forms
It comes from the leaves of the holy basil plant, taken as tea or extract.
Why Holy Basil (Tulsi) appears in weight-loss formulas
It appears in stress-and-metabolism formulas for its cortisol and glucose research.
Safety, side effects and interactions
Generally well tolerated; it may mildly lower blood sugar and is generally avoided in pregnancy.
How to choose a quality Holy Basil (Tulsi) supplement
When choosing a Holy Basil (Tulsi) product or a formula containing it, look for one that discloses the actual amount of holy basil (tulsi) (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.
A sacred adaptogen
Tulsi is revered in India as a sacred plant, and modern research studies it as an adaptogen for stress and blood sugar.
Common questions about Holy Basil (Tulsi)
What does Holy Basil (Tulsi) do for weight loss?
How much Holy Basil (Tulsi) should I take?
Is Holy Basil (Tulsi) safe?
How strong is the evidence for Holy Basil (Tulsi)?
Will Holy Basil (Tulsi) alone make me lose weight?
Does the dose in supplements match research?
Supplements with Holy Basil (Tulsi)
Formulas in the SourceLean directory that list Holy Basil (Tulsi) or a closely related form among their ingredients:
Related ingredients
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