Iron 65mg

Name: Nature Made Iron 65mg
Brand: Nature Made
Price: 6.99 USD
Availability: InStock

Solid ChoiceIron

Ultra-cheap ferrous sulfate at therapeutic doses. Effective for iron repletion but the ferrous sulfate form causes significantly more GI side effects (constipation, nausea, cramping). USP-verified. Best for those who tolerate ferrous sulfate well and want maximum value.

65/ 100

Biorank Score

Independently ranked

65/ 100

Biorank Score

Independently ranked by Biorank Laboratories

Our Verdict

Solid Choice

Nature Made Iron earns credit for incredible value ($0.04/serving), USP verification, and therapeutic dosing. The formulation score is low because ferrous sulfate is the least tolerated iron form -- not because it does not work, but because so many people cannot stay on it. No hype penalty -- this is a straightforward generic iron product. If you tolerate it, it is the cheapest effective iron option.

Key Findings

Ferrous sulfate is effective but causes GI side effects in 30-50% of users
Unbeatable value at $0.04/serving with USP verification
Must be taken on empty stomach -- which worsens nausea for many
If you tolerate it, it works as well as any iron form for repletion

Evidence Analysis

Ferrous sulfate is the most studied iron form with decades of clinical data confirming efficacy for iron deficiency anemia treatment. The 65mg elemental iron dose (from 325mg ferrous sulfate) provides a therapeutic repletion dose. However, ferrous sulfate has well-documented GI side effects that cause 30-50% of patients to discontinue treatment. The poor tolerability is the primary limitation. USP verification ensures label accuracy. Nature Made uses the standard pharmaceutical form.

Ingredient Breakdown

Ingredient	Dose	Effective Dose	Adequacy	Verdict
Iron (Ferrous Sulfate)	65mg elemental	18-65mg		Optimal

True Cost Analysis

Properly Dosed -- What You Pay Is What You Get

Listed Price

$0.04/serving

$1.20/month at 1 serving/day

True Cost Per Effective Dose

$0.04/effective dose

$1.20/month for effective dosing

Value Score

Excellent value

Where It Falls Short

Ferrous sulfate causes significant GI side effects in 30-50% of users. Must be taken on an empty stomach for best absorption (which worsens nausea). 65mg is a high dose that increases side effect risk. The tablet form dissolves in the stomach rather than intestine, contributing to GI irritation.