9 Best iron supplement without constipation

checkIcon 125M consumers helped this year.

Last Updated: 12-2-2025

Advertising Disclosure

MegaFood Blood Builder Iron Supplement for Women & Men - Increase Iron Levels Without Side Effects - Combats Fatigue - with Vitamin B12, Folic Acid & Vitamin C for Absorption - Vegan - 180 Tablets

MegaFood

9.8

CHECK PRICE

MORE DEALS (1)

MegaFood Blood Builder Iron Supplement for Women & Men - Increase Iron Levels Without Side Effects - Combats Fatigue - with Vitamin B12, Folic Acid & Vitamin C for Absorption - Vegan - 90 Tablets

MegaFood

9.6

CHECK PRICE

MORE DEALS (1)

Best Value

- 20%

LifeSeasons Blood Nourish-R - Iron Deficiency Supplement - Supports Anemia, Fatigue, Paleness & Dizziness - No Constipation - Blood Building - Iron, Alfalfa, Raspberry & Vitamin B-12-60 Capsules

LifeSeasons

9.5

CHECK PRICE

MORE DEALS (1)

MegaFood Blood Builder Iron Supplement for Women & Men - Increase Iron Levels Without Side Effects - Combats Fatigue - Vitamin B12, Folic Acid & Vitamin C - Vegan - 72 Mini Tablets (36 Servings)

MegaFood

9.2

CHECK PRICE

MORE DEALS (1)

- 13%

Solgar Gentle Iron, 180 Vegetable Capsules - Ideal for Sensitive Stomachs - Non-Constipating - Red Blood Cell Supplement - Non GMO, Vegan, Gluten-Free, Dairy Free, Kosher - 180 Servings

Solgar

9.1

CHECK PRICE

MORE DEALS (1)

THORNE - Iron Bisglycinate - 25 mg Iron Supplement for Enhanced Absorption Without Gastrointestinal Side Effects* - NSF Certified for Sport - Gluten-Free - 60 Servings

THORNE

8.8

CHECK PRICE

MORE DEALS (1)

Iron Supplement for Women & Men, 65mg Ferrous Bisglycinate Chelate, Slow Release Iron with Vitamins A C E B6, B12, Folate, Organic Spinach & Beet Root Powder, for Blood Flow & Energy Support, 60 Caps

Vitacook

8.6

CHECK PRICE

MORE DEALS (1)

- 43%

NOW Supplements, Iron 36 mg, Double Strength, Non-Constipating*, Essential Mineral, 90 Veg Capsules

NOW Foods

8.4

CHECK PRICE

MORE DEALS (1)

- 41%

NOW Foods Supplements, Iron 18 mg, Non-Constipating*, Essential Mineral, 120 Veg Capsules

NOW Foods

8.2

CHECK PRICE

MORE DEALS (1)

MegaFood Blood Builder Iron Supplement for Women & Men - Increase Iron Levels Without Side Effects - Combats Fatigue - with Vitamin B12, Folic Acid & Vitamin C for Absorption - Vegan - 180 Tablets

MegaFood Blood Builder Iron Supplement for Women & Men - Increase Iron Levels Without Side Effects - Combats Fatigue - with Vitamin B12, Folic Acid & Vitamin C for Absorption - Vegan - 90 Tablets

LifeSeasons Blood Nourish-R - Iron Deficiency Supplement - Supports Anemia, Fatigue, Paleness & Dizziness - No Constipation - Blood Building - Iron, Alfalfa, Raspberry & Vitamin B-12-60 Capsules

MegaFood Blood Builder Iron Supplement for Women & Men - Increase Iron Levels Without Side Effects - Combats Fatigue - Vitamin B12, Folic Acid & Vitamin C - Vegan - 72 Mini Tablets (36 Servings)

Solgar Gentle Iron, 180 Vegetable Capsules - Ideal for Sensitive Stomachs - Non-Constipating - Red Blood Cell Supplement - Non GMO, Vegan, Gluten-Free, Dairy Free, Kosher - 180 Servings

THORNE - Iron Bisglycinate - 25 mg Iron Supplement for Enhanced Absorption Without Gastrointestinal Side Effects* - NSF Certified for Sport - Gluten-Free - 60 Servings

Iron Supplement for Women & Men, 65mg Ferrous Bisglycinate Chelate, Slow Release Iron with Vitamins A C E B6, B12, Folate, Organic Spinach & Beet Root Powder, for Blood Flow & Energy Support, 60 Caps

NOW Supplements, Iron 36 mg, Double Strength, Non-Constipating*, Essential Mineral, 90 Veg Capsules

NOW Foods Supplements, Iron 18 mg, Non-Constipating*, Essential Mineral, 120 Veg Capsules

Related Products