Slow Release Iron
21st Century
Slow Release Iron
4.6
★ ★ ★ ★ ★
(16935 ratings)
Iron 45 mg
Score 65
A slow-release ferrous sulfate iron supplement (45mg) aiming for gentleness, but its efficacy is compromised by co-formulated calcium.
Quantity: 60 Tablet(s) • (60 servings)
Goals: flag Hair Health flag Nail Health flag Energy flag Fitness flag Mental Focus
leaderboard Score 65
A slow-release ferrous sulfate iron supplement (45mg) aiming for gentleness, but its efficacy is compromised by co-formulated calcium.
insights Analysis
21st Century Slow Release Iron offers 45mg of iron as dried ferrous sulfate, formulated for slow release to potentially minimize common gastrointestinal side effects. This dosage is adequate for addressing iron deficiency. However, a notable drawback is the inclusion of calcium carbonate, an ingredient known to inhibit iron absorption. For optimal effectiveness, this supplement would need to be taken separately from meals or other supplements containing calcium, which adds a layer of inconvenience and potential for reduced efficacy if not managed properly.
- Slow-release formulation may reduce gastrointestinal side effects
- Provides a substantial 45mg dose of iron
- Affordable price per serving
- Contains calcium, which can inhibit iron absorption if taken concurrently
- Requires careful timing of intake to avoid reduced efficacy
- Ferrous sulfate can still cause side effects for some individuals
- Take this supplement at least 2 hours apart from calcium-rich foods or supplements to maximize iron absorption.
- Consult a healthcare professional before use, especially if you have existing health conditions.
$3.36($0.05 per serving)
 Amazon | $ 3.36 | |
 iHerb | $ 4.99 | |
 Pure Formulas | $ 5.37 | |
 Walmart | $ 8.67 |
Ingredients
| Ingredient | Amount per serving |
|---|---|
Calcium | 31 mg |
Iron | 45 mg |
Categories
Iron 65
It's a reasonably dosed iron supplement, and the slow-release mechanism is a positive feature for stomach comfort. However, the presence of calcium is a significant formulation flaw that reduces its effectiveness as a sole iron source compared to products without absorption inhibitors.
Goals
The 45mg iron dose is effective for improving energy levels, and the slow-release may enhance tolerability. However, the presence of calcium could reduce the amount of absorbed iron, potentially slowing energy improvement.
While a good iron dose can enhance cognitive function, the co-presence of calcium may hinder optimal absorption, meaning the full productivity boosting potential might not be realized without careful dosing practices.
Iron is important for hair health. The iron content is beneficial, but the calcium could interfere with consistent iron delivery to the body, potentially limiting its full impact on hair.
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★★★★★
(7717 ratings)
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(15951 ratings)
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4.8
★★★★★
(10017 ratings)
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