Compare supplement forms
Magnesium glycinate or oxide? Methylcobalamin or cyanocobalamin? Each comparison puts two forms side by side: cited quality tier, how much of the nutrient each actually delivers by weight, how common it is on US labels, and the doses brands declare.
Ashwagandha (Withania somnifera)
Calcium
Choline
Chromium
- Chromium Picolinate vs. Chromium Polynicotinate
- Chromium Picolinate vs. Chromium Chloride
- Chromium Picolinate vs. Chromium Nicotinate Glycinate Chelate
- Chromium Picolinate vs. Chromium Amino Acid Chelate
- Chromium Polynicotinate vs. Chromium Chloride
- Chromium Polynicotinate vs. Chromium Nicotinate Glycinate Chelate
- Chromium Polynicotinate vs. Chromium Amino Acid Chelate
- Chromium Chloride vs. Chromium Nicotinate Glycinate Chelate
- Chromium Chloride vs. Chromium Amino Acid Chelate
- Chromium Nicotinate Glycinate Chelate vs. Chromium Amino Acid Chelate
Copper
- Copper Gluconate vs. Copper Amino Acid Chelate
- Copper Gluconate vs. Cupric Oxide
- Copper Gluconate vs. Copper Citrate
- Copper Gluconate vs. Copper Sulfate
- Copper Amino Acid Chelate vs. Cupric Oxide
- Copper Amino Acid Chelate vs. Copper Citrate
- Copper Amino Acid Chelate vs. Copper Sulfate
- Cupric Oxide vs. Copper Citrate
- Cupric Oxide vs. Copper Sulfate
- Copper Citrate vs. Copper Sulfate
Creatine
Folate (Vitamin B9)
- Calcium L-5-Methyltetrahydrofolate (Metafolin, brand) vs. L-5-Methyltetrahydrofolate (L-Methylfolate, free acid)
- Calcium L-5-Methyltetrahydrofolate (Metafolin, brand) vs. Quatrefolic (glucosamine salt of L-5-MTHF, brand)
- L-5-Methyltetrahydrofolate (L-Methylfolate, free acid) vs. Quatrefolic (glucosamine salt of L-5-MTHF, brand)
Glucosamine
Iodine
Iron
- Ferrous Fumarate vs. Ferrous/Iron Bisglycinate Chelate
- Ferrous Fumarate vs. Iron Amino Acid Chelate
- Ferrous Fumarate vs. Ferrous Sulfate
- Ferrous Fumarate vs. Ferrous Gluconate
- Ferrous/Iron Bisglycinate Chelate vs. Iron Amino Acid Chelate
- Ferrous/Iron Bisglycinate Chelate vs. Ferrous Sulfate
- Ferrous/Iron Bisglycinate Chelate vs. Ferrous Gluconate
- Iron Amino Acid Chelate vs. Ferrous Sulfate
- Iron Amino Acid Chelate vs. Ferrous Gluconate
- Ferrous Sulfate vs. Ferrous Gluconate
Magnesium
- Magnesium Oxide vs. Magnesium Citrate
- Magnesium Oxide vs. Magnesium Glycinate
- Magnesium Oxide vs. Magnesium Aspartate
- Magnesium Oxide vs. Magnesium Amino Acid Chelate
- Magnesium Citrate vs. Magnesium Glycinate
- Magnesium Citrate vs. Magnesium Aspartate
- Magnesium Citrate vs. Magnesium Amino Acid Chelate
- Magnesium Glycinate vs. Magnesium Aspartate
- Magnesium Glycinate vs. Magnesium Amino Acid Chelate
- Magnesium Aspartate vs. Magnesium Amino Acid Chelate
Manganese
Omega-3 Fatty Acids (EPA + DHA)
Potassium
- Potassium Citrate vs. Potassium Chloride
- Potassium Citrate vs. Potassium Bicarbonate
- Potassium Citrate vs. Potassium Aspartate
- Potassium Citrate vs. Potassium Gluconate
- Potassium Chloride vs. Potassium Bicarbonate
- Potassium Chloride vs. Potassium Aspartate
- Potassium Chloride vs. Potassium Gluconate
- Potassium Bicarbonate vs. Potassium Aspartate
- Potassium Bicarbonate vs. Potassium Gluconate
- Potassium Aspartate vs. Potassium Gluconate
Selenium
Vitamin A
Vitamin B12 (Cobalamin)
Vitamin C
Vitamin E
Zinc
- Zinc Oxide vs. Zinc Citrate
- Zinc Oxide vs. Zinc Gluconate
- Zinc Oxide vs. Zinc Bisglycinate Chelate
- Zinc Oxide vs. Zinc Amino Acid Chelate
- Zinc Citrate vs. Zinc Gluconate
- Zinc Citrate vs. Zinc Bisglycinate Chelate
- Zinc Citrate vs. Zinc Amino Acid Chelate
- Zinc Gluconate vs. Zinc Bisglycinate Chelate
- Zinc Gluconate vs. Zinc Amino Acid Chelate
- Zinc Bisglycinate Chelate vs. Zinc Amino Acid Chelate