PlainVitamins

Krebs Cycle Support

by Nature's Way · tablet or pill · 100 vegan tablets

  • On the market (NIH)
  • UPC 7 63948 07751 9
  • DSLD label 212720
  • Serving 4 tablets
  • 25 servings

Krebs Cycle Support by Nature's Way lists 12 ingredients, 12 with an amount per serving of 4 tablets, such as 600 mg of calcium, 5 mg of iron, 100 mcg of iodine and 400 mg of magnesium, beside 1 Nutrition Facts row (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on January 25, 2020.

What is in Krebs Cycle Support?

Each row as the label prints it, per serving of 4 tablets. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Krebs Cycle Support: Supplement Facts rows against the market (DSLD label 212720, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories10 Calories
Total Carbohydrates4 g1%Carbohydrate in Krebs Cycle Support against 21,979 products4 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.4 g

Higher than 53% of 21,979 products listing carbohydrate (median 3 g).

Calciumas Calcium CitrateCalcium (Form: as Calcium Citrate)600 mg46%Calcium in Krebs Cycle Support against 17,831 products600 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg600 mg

Higher than 91% of 17,831 products listing calcium (median 115 mg).

Ironas Ferrous FumarateIron (Form: as Ferrous Fumarate)5 mg28%Iron in Krebs Cycle Support against 6,910 products5 mg per serving; the middle half of products list 1.2 mg to 18 mg, the median 5 mg.DV 18 mgUL 45 mg5 mg

46% of 6,910 products listing iron give more (median 5 mg).

Iodineas Potassium IodideIodine (Form: as Potassium Iodide)100 mcg67%Iodine in Krebs Cycle Support against 6,382 products100 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg100 mcg

59% of 6,382 products listing iodine give more (median 150 mcg).

Magnesiumas Magnesium Citrate, Magnesium OxideMagnesium (Form: as Magnesium Citrate, Magnesium Oxide)400 mg95%Magnesium in Krebs Cycle Support against 14,003 products400 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg400 mg

Higher than 92% of 14,003 products listing magnesium (median 86 mg). 1.1 times the adult UL a day.

Zincas Zinc CitrateZinc (Form: as Zinc Citrate Chelate)15 mg136%Zinc in Krebs Cycle Support against 13,186 products15 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg15 mg

Higher than 56% of 13,186 products listing zinc (median 11 mg).

Seleniumas Sodium SelenateSelenium (Form: as Sodium Selenate)75 mcg136%Selenium in Krebs Cycle Support against 7,658 products75 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg75 mcg

Higher than 62% of 7,658 products listing selenium (median 55 mcg).

Copperas Copper Citrate ChelateCopper (Form: as Copper Citrate Chelate)1 mg111%Copper in Krebs Cycle Support against 6,468 products1 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg1 mg

40% of 6,468 products listing copper give more (median 1 mg).

Manganeseas Manganese Citrate ChelateManganese (Form: as Manganese Citrate Chelate)2 mg87%Manganese in Krebs Cycle Support against 7,016 products2 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg2 mg

38% of 7,016 products listing manganese give more (median 2 mg).

Molybdenumas Molybdenum GlycinateMolybdenum (Form: as Molybdenum Glycinate)25 mcg56%Molybdenum in Krebs Cycle Support against 4,390 products25 mcg per serving; the middle half of products list 25 mcg to 75 mcg, the median 50 mcg.DV 45 mcgUL 2,000 mcg25 mcg

72% of 4,390 products listing molybdenum give more (median 50 mcg).

Potassiumas Potassium Chloride, Potassium CitratePotassium (Form: as Potassium Citrate, Potassium Chloride)100 mg2%Potassium in Krebs Cycle Support against 11,614 products100 mg per serving; the middle half of products list 50 mg to 190 mg, the median 99 mg.DV 4,700 mg100 mg

Higher than 51% of 11,614 products listing potassium (median 99 mg).

Boronas Sodium BorateBoron (Form: as Sodium Borate)4 mgBoron in Krebs Cycle Support against 3,339 products4 mg per serving; the middle half of products list 0.3 mg to 2 mg, the median 1 mg.UL 20 mg4 mg

Higher than 93% of 3,339 products listing boron (median 1 mg).

Vanadiumas Vanadyl SulfateVanadium (Form: as Vanadyl Sulfate)50 mcgVanadium in Krebs Cycle Support against 1,744 products50 mcg per serving; the middle half of products list 10 mcg to 100 mcg, the median 25 mcg.UL 1,800 mcg50 mcg

Higher than 59% of 1,744 products listing vanadium (median 25 mcg).

Source: NIH ODS Dietary Supplement Label Database, label 212720 (entered January 25, 2020), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • Its 600 mg of calcium is higher than 91% of the 17,831 calcium products that print an amount; 1,267 list more.
  • At 1 serving a day, the most its directions give, the label lists 400 mg of magnesium, 1.1 times the adult Tolerable Upper Intake Level.
  • Its 4 mg of boron is higher than 93% of the 3,339 boron products that print an amount; 213 list more.

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

The products whose ingredient lists overlap most with Krebs Cycle Support's, rare ingredients counting for more.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Recommendation: Take 4 tablets daily.
Warnings
If you are pregnant, nursing, or taking any medications, consult a healthcare professional before use.
Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of the reach of children. In case of accidental overdose, call your physician or a Poison Control Center immediately.
Keep out of reach of children.
Safety sealed with printed inner seal. Do not use if seal is broken or missing.
Allergens and what it does not contain
Gluten free. No yeast-derived ingredients, soy, wheat, dairy products, or artificial flavors, or preservatives.

Source: label statements in DSLD label 212720.

What else is on the label?

Other ingredients: Cellulose, Hypromellose, Stearic Acid, Silica, Magnesium Stearate, Titanium Dioxide color, Glycerin, Sodium Croscarmellose.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Quality Global Sourcing Bottled & Tested In the USA.

How many labels does Krebs Cycle Support have?

One label is on file, entered on January 25, 2020.

  1. Label 212720 (current) Entered January 25, 2020 · on the market · 100 vegan tablets · UPC 7 63948 07751 9

DSLD also links this label to: Krebs Cycle Chelates (image difference, same product).

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Nature's Way Brands, LLC (manufacturer), Green Bay, WI. All Nature's Way products.

Where next?