Thorne Zinc Picolinate vs NOW Foods Zinc Picolinate
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Thorne Zinc Picolinate and NOW Foods Zinc Picolinate.
Last verified: 01 Mar 2026 · Based on 126 reviews
Our Verdict: Thorne Zinc Picolinate or NOW Foods Zinc Picolinate?
Thorne wins with a score of 85 versus NOW Foods' 79, offering a more appropriate 22mg daily dose against NOW Foods' excessive 50mg. Pick NOW Foods if you need a high-dose correction, value vegan certification, or want to save £6.48 per bottle. Thorne's premium price reflects superior purity testing and safer dosing for long-term use.
— AIScored Editorial Team
Thorne Zinc Picolinate scores 85.0/100 vs NOW Foods Zinc Picolinate at 79.0/100. Thorne Zinc Picolinate wins on effectiveness, side effects. NOW Foods Zinc Picolinate is stronger on value for money and certifications.
Thorne Zinc Picolinate vs NOW Foods Zinc Picolinate: What Does the Data Say?
Both products use zinc picolinate, one of the better-absorbed forms available. The critical difference is dosage: Thorne provides 22mg per serving, within UK safe upper limits, while NOW Foods delivers 50mg — above both the UK/EU upper limit of 25mg and the US tolerable upper intake level of 40mg. That alone shapes how each product should be used. Thorne scores 85/100 overall at £21.38; NOW Foods scores 79/100 at £14.90, with stronger value scores (80 versus 74) reflecting its lower price.
For daily, long-term use — supporting hair, skin, immune health, or mild deficiency — Thorne is the more appropriate option. Its dose won't risk copper depletion over time and stays within safe limits without careful monitoring. NOW Foods is better suited to short-term corrective use: confirmed deficiency, or a few weeks of seasonal immune support during winter. Using it indefinitely at 50mg daily would be inadvisable for most people.
On certifications, NOW Foods has the edge — GMP, Non-GMO Project Verified, Vegan, Kosher, Halal, and third-party tested. Thorne lacks third-party verification despite its quality reputation. Both products must be taken with food; empty-stomach nausea is reported with each. Vegans will appreciate NOW Foods' certified vegan capsules. For most people after a sensible everyday zinc supplement, Thorne's dosage and 85/100 score make it the more responsible daily choice.
How Do the Scores Compare?
Zinc Picolinate 22mg
Thorne
|
NOW Foods Zinc Picolinate 50mg
NOW Foods
|
|
|---|---|---|
| Overall Score | 85.0 | 79.0 |
| Effectiveness |
84.0/100
Best
|
81.0/100 |
| Ingredient Quality |
91.0/100
Best
|
91.0/100
Best
|
| Value for Money | 74.0/100 |
80.0/100
Best
|
| Side Effects |
86.0/100
Best
|
62.0/100 |
| Certifications | 89.0/100 |
95.0/100
Best
|
| Best Price |
£13.17
Amazon UK →
Cheapest
|
£15.05 Amazon UK → |
| Price per Serving | N/A | £0.13 120 servings |
| Form | N/A | Capsules |
| Dose | N/A | 50mg (455% DV) |
| Third-Party Tested | ✗ No | ✓ Yes |
| Reviews Analysed | 63 | 63 |
Zinc Picolinate 22mg
Pros
- ✓Zinc picolinate is among the most bioavailable zinc forms — well absorbed even with reduced stomach acidity
- ✓Thorne Research brand known for rigorous purity testing, NSF certification, and minimal excipients
- ✓Widely reported benefits: reduced hair loss, clearer skin, stronger nails, fewer colds
- ✓Small capsules, neutral taste, no significant aftertaste — easy to incorporate daily
Cons
- ✗Mild nausea possible if taken on an empty stomach — best taken with food
- ✗Long-term use requires copper supplementation to prevent copper depletion
- ✗Premium brand pricing — higher cost per serving than budget zinc options
- ✗Dosage (15–22mg) may be insufficient for therapeutic use in severe deficiency without medical guidance
Best For
NOW Foods Zinc Picolinate 50mg
Pros
- ✓Zinc picolinate is among the most bioavailable zinc forms (~61% absorption), well-absorbed even with low stomach acidity
- ✓Exceptionally clean formulation — only rice flour, HPMC (vegan) capsule, and vegetable stearic acid; no artificial fillers or allergens
- ✓Comprehensive certifications: GMP, Non-GMO Project Verified, Vegan, Kosher, and Halal — independently verified quality
- ✓Broad user-reported benefits: reduced acne, less hair loss, stronger nails, improved immunity, faster post-illness recovery
Cons
- ✗50mg dose exceeds the UK and EU recommended safe upper limit (25mg) and the US tolerable upper intake level (40mg) — not appropriate for unrestricted daily use
- ✗Must be taken with food; multiple reviewers reported nausea, stomach discomfort, or dizziness when taken on an empty stomach
- ✗Chronic high-dose zinc supplementation can deplete copper levels — reviewers suggest pairing with copper or taking periodic breaks
- ✗Effects require 2–4 weeks to become noticeable; not a fast-acting supplement
Best For
Score Breakdown: Thorne Zinc Picolinate vs NOW Foods Zinc Picolinate
Thorne Zinc Picolinate is a well-regarded supplement using zinc picolinate, one of the most bioavailable forms of zinc, bound to picolinic acid for superior absorption even in low-stomach-acid conditions.
What are the key differences?
Frequently Asked Questions
Which is better, Thorne Zinc Picolinate or NOW Foods Zinc Picolinate? ▼
Is Thorne Zinc Picolinate worth the price compared to NOW Foods Zinc Picolinate? ▼
Which has fewer side effects? ▼
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Disclaimer: AIScored provides data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.
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