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EVLution Nutrition · Pre-workout

Is EVLution Nutrition ENGN Shred underdosed?

1 scoop = 8.3 g30 scoopsLabel as of 24 Apr 2025 · NIH DSLD
Verdict

Below research dose on 2 of 3 key ingredients.

Beta-Alanine and Betaine Anhydrous are below the amounts studies use. Caffeine is in the research range.

Effective dose
1
Below research dose
3
Hidden in a blend
0
Too much
0

Ingredient by ingredient

Per scoop · bodyweight 75 kg (default)
  • Vitamin B1 (Thiamine Mononitrate)Per scoop 4 mgStudies Not setNot gradedNot graded

    Not graded: a vitamin or mineral. We grade a pre-workout’s ingredients against exercise studies; vitamins and minerals are graded only on their own supplement pages.

  • Niacin (Niacinamide)Per scoop 35 mgStudies Not setNot gradedNot graded

    Not graded: a vitamin or mineral. We grade a pre-workout’s ingredients against exercise studies; vitamins and minerals are graded only on their own supplement pages.

  • Vitamin B6 (Pyridoxine Hydrochloride)Per scoop 2 mgStudies Not setNot gradedNot graded

    Not graded: a vitamin or mineral. We grade a pre-workout’s ingredients against exercise studies; vitamins and minerals are graded only on their own supplement pages.

  • Folic Acid (Pteroylmonoglutamic Acid)Per scoop 200 mcgStudies Not setNot gradedNot graded

    Not graded: a vitamin or mineral. We grade a pre-workout’s ingredients against exercise studies; vitamins and minerals are graded only on their own supplement pages.

  • Vitamin B12 (Cyanocobalamin)Per scoop 25 mcgStudies Not setNot gradedNot graded

    Not graded: a vitamin or mineral. We grade a pre-workout’s ingredients against exercise studies; vitamins and minerals are graded only on their own supplement pages.

  • CholinePer scoop 205 mgStudies Not setNot gradedNot graded

    Contains 205 mg. Not graded: most people get enough choline from food, and a review of the exercise studies found supplements might only help endurance when very long, hard exercise lowers blood choline (Penry and Manore, 2008).

  • Chromium (Chromium Picolinate)Per scoop 24 mcgStudies Not setNot gradedNot graded

    Not graded: a vitamin or mineral. We grade a pre-workout’s ingredients against exercise studies; vitamins and minerals are graded only on their own supplement pages.

  • Beta-AlaninePer scoop 1.6 gStudies 3.2–6.4 g/dayBelow research doseStrong

    Contains 1.6 g; studies use 3.2–6.4 g/day. Beta-Alanine works through daily use over weeks; a lower amount still builds up, just more slowly.

  • Betaine AnhydrousPer scoop 1 gStudies 2.5 g/dayBelow research doseModerate

    Contains 1 g; studies use 2.5 g/day. Betaine Anhydrous works through daily use over weeks; a lower amount still builds up, just more slowly.

  • Choline BitartratePer scoop 500 mgStudies Not setNot gradedNot graded

    Not graded: we have no research dose for it from exercise studies.

  • L-TyrosinePer scoop 500 mgStudies Not setNot gradedNot graded

    Contains 500 mg. Not graded: a 2023 meta-analysis found no effect on endurance; its evidence is for focus under stress, at about 150 mg per kg of bodyweight.

  • Conjugated Linoleic Acid, Powder [std. min. 40% CLA]Per scoop 500 mgStudies Not setNot gradedNot graded

    Not graded: we have no research dose for it from exercise studies.

  • L-Carnitine L-TartratePer scoop 500 mgStudies 3 g/dayBelow research doseWeak

    Contains 500 mg; studies use 3 g/day. Trials gave it daily, for weeks.

  • CaffeineLabel: Caffeine, Natural (Coffee)Per scoop 250 mgStudies 3–6 mg/kgEffective doseStrong

    Contains 250 mg (3.3 mg/kg at 75 kg); studies use 3–6 mg/kg.

  • Capsimax (Cayenne Fruit Extract)Per scoop 25 mgStudies Not setNot gradedNot graded

    Not graded: we have no research dose for it from exercise studies.

  • Olive Leaf Extract (Oleuropein) [std. min 40% Oleuropein]Per scoop 25 mgStudies Not setNot gradedNot graded

    Not graded: we have no research dose for it from exercise studies.

Use “Check it for your dose” to see this table for your own scoops and bodyweight. Only caffeine is dosed per kilogram in the studies we cite; the other research doses are fixed amounts, so your weight doesn't change them.

How many scoops would it take?

To reach the low end of the research dose for each underdosed ingredient.

Beta-Alanine to 3.2 g
2.0 scoops
brings 500 mg caffeine
Betaine Anhydrous to 2.5 g
2.5 scoops
brings 625 mg caffeine

Taking more doesn't fix this product. Reaching those doses means more than 400 mg of caffeine from the scoops alone, above the FDA's 400 mg daily reference for most adults, before any coffee.

Where the reference doses come from

  1. Beta-Alanine, 3.2–6.4 g/day: Harris et al., 2006Hobson et al., 2012Trexler et al., 2015.
  2. Betaine Anhydrous, 2.5 g/day: Cholewa et al., 2013Hoffman et al., 2009Zawieja et al., 2024.
  3. Caffeine, 3–6 mg/kg: Guest et al., 2021.
  4. L-Carnitine L-Tartrate, 3 g/day: Stefan et al., 2021Volek et al., 2002.
  5. Daily caffeine reference, 400 mg: US FDA, Spilling the Beans.
  6. Label data: National Institutes of Health, Office of Dietary Supplements. Dietary Supplement Label Database, 2026. https://dsld.od.nih.gov/. Label 326772.

Methodology 1.11. Read the full methodology or the corrections log.