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Shilajit vs Ashwagandha (KSM-66) — Which Should You Take?

Shilajit provides fulvic acid and trace minerals that support testosterone and energy. Ashwagandha reduces cortisol and anxiety. Both are Ayurvedic adaptogens with complementary mechanisms.

★

Quick Verdict

Shilajit for fulvic acid and minerals; ashwagandha for cortisol reduction

Shilajit

★★★★★

adaptogens

Typically £8–£25/month

Ashwagandha (KSM-66)

★★★★★

adaptogens

Typically £8–£25/month
Feature
Shilajit
Ashwagandha (KSM-66)
Typical Dosage
300-500 mg daily
300-600mg daily (KSM-66 extract)
Best Form
Powder
KSM-66
Key Benefits
5 listed
5 listed
Evidence Rating
★★★★★
★★★★★
Best Time
With meals, typically in morning or split between morning and evening
Evening for sleep, or split morning/evening for stress
Upper Limit
1000 mg daily
1,200mg daily
Side Effects
4 noted
4 noted

Shilajit Benefits

✓Enhanced energy and ATP production
✓Improved cognitive function and mental clarity
✓Antioxidant and anti-inflammatory support
✓Bone health and mineral absorption
✓Athletic performance and recovery

Ashwagandha (KSM-66) Benefits

✓Reduces cortisol and perceived stress
✓Improves sleep quality
✓May increase testosterone in men
✓Anxiety reduction
✓Physical performance enhancement

Shilajit Side Effects

⚠Allergic reactions or itching (rare)
⚠Dizziness or vertigo in sensitive individuals
⚠Elevated uric acid levels (potential concern for gout-prone individuals)
⚠Diarrhoea at high doses

Ashwagandha (KSM-66) Side Effects

⚠Drowsiness (dose-dependent)
⚠May worsen thyroid conditions (can increase thyroid hormones)
⚠Mild digestive upset in some people
⚠Not recommended during pregnancy

Can You Take Shilajit and Ashwagandha (KSM-66) Together?

In most cases, Shilajit and Ashwagandha (KSM-66) can be taken together safely. However, always check the interactions section of each supplement and consult a healthcare professional if you take medication or have existing health conditions.

Shilajit: May increase iron absorption; caution with iron supplements in those with haemochromatosis

Shilajit: Potential interactions with blood thinners due to fulvic acid content

Ashwagandha (KSM-66): Thyroid medications — may increase thyroid hormone levels

Ashwagandha (KSM-66): Sedatives — additive drowsiness

Which Should You Choose?

Shilajit for fulvic acid and minerals; ashwagandha for cortisol reduction. Many people take both as they target different aspects of health. The best choice depends on your individual needs, existing diet, and health goals. If in doubt, start with one, assess for 4-8 weeks, then consider adding the other.

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Frequently Asked Questions

Is Shilajit better than Ashwagandha (KSM-66)?

Shilajit for fulvic acid and minerals; ashwagandha for cortisol reduction

Can I take Shilajit and Ashwagandha (KSM-66) together?

In most cases, yes. Shilajit and Ashwagandha (KSM-66) can be taken together safely. However, always check for specific interactions and consult a healthcare professional if you take medication.

What is the best time to take Shilajit?

With meals, typically in morning or split between morning and evening

What is the best time to take Ashwagandha (KSM-66)?

Evening for sleep, or split morning/evening for stress

What are the side effects of Shilajit?

Allergic reactions or itching (rare). Dizziness or vertigo in sensitive individuals. Elevated uric acid levels (potential concern for gout-prone individuals). Diarrhoea at high doses.

What are the side effects of Ashwagandha (KSM-66)?

Drowsiness (dose-dependent). May worsen thyroid conditions (can increase thyroid hormones). Mild digestive upset in some people. Not recommended during pregnancy.

How We Compare Supplements

This comparison is based on published clinical research, peer-reviewed studies from PubMed, and established nutritional science. We evaluate dosages based on clinically-effective amounts, not manufacturer recommendations. Benefits listed have at least moderate evidence from human studies. When evidence is limited or conflicting, we note this.

Disclaimer: This comparison is for educational purposes only and is not medical advice. Always consult a qualified healthcare professional before starting any supplement, especially if you take medication or have existing health conditions.

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