Magnesium 2500 MCG vs 5000 MCG: Which Dose?
By Shop All Sports Research Supplements | Sports Research | Published: 2026-10-25
Category: Comparisons
Compare Sports Research Magnesium 2500 MCG and 5000 MCG capsules. Learn which dose suits your routine based on serving size, potency, and value.
Quick answer
Choose the 2500 MCG / 120-count bottle if you want a longer supply with a moderate daily dose. Pick the 5000 MCG / 30-count bottle if you need a higher per-serving potency and are okay with fewer capsules per bottle.
What the numbers mean
Both products use the same Plantgel™ capsule format and come from Sports Research. The key difference is the mcg per serving and the bottle count. The 2500 MCG option gives you 120 capsules, while the 5000 MCG option gives you 30 capsules. That means the 2500 MCG bottle lasts about four times longer if you take one capsule daily, but each capsule delivers half the potency of the 5000 MCG version.
Trade-offs at a glance
- Potency per capsule: 2500 MCG per capsule vs 5000 MCG per capsule. The 5000 MCG gives you a bigger dose in one pill.
- Bottle count and supply: 120 capsules vs 30 capsules. The 2500 MCG bottle lasts roughly four times longer at one capsule per day. If you dislike reordering often, the 2500 MCG bottle is more convenient.
- Cost per bottle: The 2500 MCG bottle is priced at USD 11.53 (catalog comparison USD 16.95). The 5000 MCG bottle is USD 6.87 (catalog comparison USD 9.95). The 5000 MCG bottle has a lower upfront cost, but the 2500 MCG bottle offers more total capsules.
Product facts at a glance
- 2500 MCG / 120 Plantgel™ Capsules: Provides 2500 MCG per serving in a 120-count bottle of Plantgel™ capsules. You get a moderate daily dose in a bottle that lasts months, reducing reorder frequency.
2500 MCG / 120 Plantgel™ Capsules - 5000 MCG / 30 Plantgel™ Capsules: Delivers 5000 MCG per serving in a 30-count bottle of Plantgel™ capsules. Each capsule packs double the potency, ideal if you prefer a stronger single serving or want to take it less often.
5000 MCG / 30 Plantgel™ Capsules
Which dose fits you?
Best for
- Those who want a moderate daily dose and prefer fewer refills – choose the 2500 MCG / 120-count.
- Shoppers who want a higher per-capsule potency and don't mind a smaller bottle – choose the 5000 MCG / 30-count.
Not ideal for
- Anyone who needs a very low dose (under 2500 MCG) – neither product offers that.
- Those who require a very high daily total (e.g., 10,000+ MCG) – you would need multiple capsules from either option.
