12 Best Iron Supplements for 2024, According to Dietitians



11. Pure Encapsulations Iron Liquid

Best for sensitive stomachs

  • Form: liquid
  • Dose: 1 teaspoon (5 mL) per day
  • Number of servings: 24 per container

Healthline’s review

Pure Encapsulations Iron Liquid provides 15 mg of iron per 1-teaspoon (5-milliliter [mL]) serving in the form of SunActive Fe, a form of iron with high bioavailability that’s well tolerated and doesn’t cause GI issues.

This makes Pure Encapsulations Iron Liquid a good alternative for people who experience GI side effects, such as constipation when taking iron salts.

It also contains a blend of cranberry and wild blueberry extract, which is meant to provide antioxidant support.

This product exceeds standards set by USP and is tested by third-party laboratories for quality and purity. It’s also gluten-free and vegetarian-friendly.

Pure Encapsulations Iron Liquid is sweetened with apple juice concentrate and flavored with natural pomegranate flavor.

Pros & cons

  • good option for those who can’t tolerate iron salts
  • gluten-free
  • vegetarian-friendly
  • third-party tested
  • no information regarding nutrition breakdown, including sugars
  • expensive

Product details

  • Active ingredient(s) (serving strength): ferric pyrophosphate 15 mg (83% DV)
  • Certifications: certified gluten-free


12. NOW Liquid Iron

Best liquid

  • Form: liquid
  • Dose: 2 teaspoons (10 mL) per day
  • Number of servings: 24 per container

Healthline’s review

For those who don’t like to swallow capsules or take chewable supplements, liquid iron products are the way to go.

NOW Liquid Iron provides 18 mg of iron as ferric glycinate, a gentle form of iron that’s less likely to cause constipation than other types of iron, such as ferrous sulfate.

Unlike many other liquid iron supplements, NOW Liquid Iron contains zero added sugars. Instead, it’s sweetened with the sugar alcohol xylitol, so it’s a good choice for those who are managing their blood sugar levels, such as people with diabetes.

Just keep in mind that consuming large amounts of xylitol can cause GI side effects, including gas and bloating. Therefore, this product may not be ideal if you regularly consume xylitol-containing foods and beverages.

NOW Liquid Iron is manufactured in UL Solutions-certified facilities and certified kosher, halal, and non-GMO.

Pros & cons

  • good choice if you can’t tolerate pills or chewable tablets
  • manufactured in third-party certified facilities
  • inexpensive
  • not suitable for people with severe food allergies
  • contains xylitol, which some people may prefer to avoid
  • not third-party tested for purity and potency

Product details

  • Active ingredient(s) (serving strength): ferric glycinate 18mg (100% DV)
  • Certifications: certified kosher