Vitamins & supplements

Benefits of calcium, magnesium and zinc

7 min

By Jordan Shute, MS, RD, LD

Oct 25

Little boy drinking a glass of milk

Calcium-rich food for bones

4 min

By Danielle Butbul, MPH, RDN

Apr 08

Woman grabbing her knee in pain

Calcium deficiency: Symptoms and risks

5 min

By Danielle Butbul, MPH, RDN

Apr 08

Young woman with a mask having blood drawn

Calcium blood test — how does it work?

6 min

By Jennifer Scheinman, MS, RDN

Oct 25

Graphic of vitamin D bottle at the beach

Vitamin D: How much and when to take

4 min

By Jenilee Matz, MPH

Dec 22

Open pill bottle with spilled pills on yellow background

Calcium supplements: What you need to know

6 min

By Andy Stergachis, PhD, BPharm

Dec 20

Young woman with a mask having blood drawn

Calcium blood test — how does it work?

6 min

By Jennifer Scheinman, MS, RDN

Oct 25

Young black mom and daughter smiling and drinking tea on the floor

Benefits of calcium, magnesium and zinc

7 min

By Jordan Shute, MS, RD, LD

Oct 25

White hands holding vitamins and a glass of water

Can vitamins & supplements help you stay well this winter?

6 min

Clinically reviewed by Rebeca Thomas, BSN, RN, CPHQ

Oct 11

Young child eating raw broccoli

Sep 28

Young Latina woman drinking a green smoothie while reading

What are normal iron levels?

7 min

By Ruben J. Rucoba, MD

Sep 22

Mason jar of green smoothie with paper straw

Treating anemia from iron deficiency

6 min

By Ruben J. Rucoba, MD

Sep 16

Young woman holding a pill

Calcium carbonate vs. calcium citrate

3 min

By Jordan Shute, MS, RD, LD

Aug 29

Young Asian girl drinking milk

Calcium function in the body: What does it do?

9 min

By Danielle Butbul, MPH, RDN

Aug 29

Young woman checking vitamin bottle information on phone

Is biotin safe for kidneys?

2 min

Robert A. Fried, MD

Jul 01

Woman stepping on white scale

Does biotin cause weight gain?

3 min

By Sadie Crouch, RN, BSN

Jul 01

Man pouring a pill into his hand

Can men take biotin?

2 min

By Maxwell Nanes, DO

Jul 01

One spoon holding two pills and one spoon holding powder

Biotin vs. collagen: How do they differ?

3 min

By Katie Newsome, MPH, RD, LD

Jul 01

Woman at table filing her nails

Biotin for nails: Does it work?

4 min

By Anna H. Chacon, MD, FAAD

Jul 01

Black woman with long hair looking at biotin pill

Biotin for hair growth: Can it help?

4 min

By Anna H. Chacon, MD, FAAD

Jul 01

Woman pouring medicine from pill bottle into her hand

Biotin daily dosage: How much do I need?

5 min

By Danielle Butbul, MPH, RDN

Jul 01

Young women in a hat at the farmers market

Calcium-rich foods that are nondairy

4 min

By Katie Newsome, MPH, RD, LD

Apr 08

Little blonde girl smiling and eating food

Calcium supplements for kids

6 min

By Katie Newsome, MPH, RD, LD

Apr 08

Young family pouring a bowl of cereal

Daily recommended calcium intake — what you need to know

6 min

By Jennifer Scheinman, MS, RDN

Apr 08

Woman grabbing her knee in pain

Calcium deficiency: Symptoms and risks

5 min

By Danielle Butbul, MPH, RDN

Apr 08

Little boy drinking a glass of milk

Calcium-rich food for bones

4 min

By Danielle Butbul, MPH, RDN

Apr 08

Three wooden spoons with vitamins

Boost your diet with the right supplements

6 min

By Nora Laberee

Nov 21

White woman holding a glass of water and pills

Should you take probiotics with antibiotics

4 min

By Jordan Shute, MS, RD, LD

Oct 27

White hand dropping multivitamins into the other hand

Guide to multivitamins with iron

7 min

By Jennifer Scheinman, MS, RDN

Sep 30

White hand pouring pills from a bottle into the other hand

Iron supplements: Benefits, dosage and side effects

7 min

By Jordan Shute, MS, RD, LD

Sep 30

Plates and bowls with various vegetables

Prebiotics vs. probiotics: What's the difference?

5 min

By Danielle Butbul, MPH, RDN

Sep 30

Bunch of oranges

Sources of vitamin C: An overview

4 min

By Jennifer Scheinman, MS, RDN

Jul 27

Man laying in a field through lens of glasses

Vitamin A deficiency: What you need to know

6 min

By Jennifer Scheinman

Jul 07

Black man resting his head on a desk full of books

Signs and symptoms of iron deficiency

5 min

By Jennifer Scheinman

Jun 17

Bottle of fish oil pills poured out

Fish oil: Benefits and dosage

5 min

By Jennifer Scheinman

May 22

Plate of salmon

What are omega-3 fats?

5 min

By Jennifer Scheinman

May 09

Assortment of vitamins in their own containers

Be in the know about multivitamins

3 min

By Walgreens

Apr 18

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