1 Product identity

Ingredient risk

Contains a high-risk ingredient

Maximum Nutrition Berry

Name: Maximum Nutrition Berry
Brand: GNC Ultra Mega Green

BrandGNC Ultra Mega Green→Other Combinations Powder 126 ingredients 1 high-risk 7 caution DSLD #27203

Net contents: 38 oz.

Target: Adults and Children 4 years and above

DSLD entry: 2013-10-25

2 Ingredients (126)

IngredientGroupSafety

CaloriesCalories—

Calories from FatCalories—

Total FatFat (unspecified)—

Saturated FatSaturated fat—

CholesterolCholesterol—

SodiumSodiumConditionally Safe

PotassiumPotassiumConditionally Safe

Total CarbohydratesCarbohydrate—

Dietary FiberFiber (unspecified)—

SugarSugar—

ProteinProtein (unspecified)—

Vitamin AVitamin AConditionally Safe

Vitamin CVitamin CGenerally Safe

Vitamin DVitamin DUse with Caution

Vitamin EVitamin EConditionally Safe

ThiamineThiaminUse with Caution

RiboflavinRiboflavinGenerally Safe

NiacinNiacinConditionally Safe

Vitamin B6Vitamin B6Use with Caution

Folic AcidFolateConditionally Safe

Vitamin B12Vitamin B12Use with Caution

BiotinBiotinGenerally Safe

Pantothenic AcidPantothenic AcidGenerally Safe

CalciumCalciumConditionally Safe

IronIronUse with Caution

IodineIodineConditionally Safe

MagnesiumMagnesiumUse with Caution

ZincZincUse with Caution

SeleniumSeleniumConditionally Safe

CopperCopperConditionally Safe

ManganeseManganeseConditionally Safe

ChromiumChromiumConditionally Safe

MolybdenumMolybdenumGenerally Safe

BoronBoronConditionally Safe

SilicaSiliconGenerally Safe

Alpha-Lipoic AcidAlpha-Lipoic AcidConditionally Safe

PABAPABA—

InositolInositolHigh risk

CholineCholineGenerally Safe

Fiber BlendBlend (Dietary substance used by man to supplement the diet by increasing the total dietary intake)—

InulinInulinGenerally Safe

FOSFructo-Oligosaccharides—

Gum ArabicAcacia—

Soy FiberSoy Fiber—

Cellulose GumCellulose—

Resistant StarchResistant Starch—

Oat FiberOat Fiber—

Lutemax 2020 LuteinLuteinGenerally Safe

LycopeneLycopene—

Oat Bran FlourOat Fiber—

ZeaxanthinZeaxanthin—

L-GlutathioneGluthathione—

N-Acetyl CysteineN-Acetyl Cysteine—

Greens Blend (Combination)Blend (Combination)—

Barley Grass juice powderBarley—

Alfalfa Juice, PowderAlfalfa—

Chlorella PowderChlorellaGenerally Safe

SpirulinaBlue-Green Algae—

Kelp powderKelp—

Wheat Grass juice powderCouch Grass—

Antioxidant BlendBlend—

Green Tea Leaf ExtractGreen Tea—

Pomegranate Fruit ExtractPomegranate—

Apple Fruit Skin ExtractApple—

White Tea Leaf ExtractWhite Tea—

Rosemary leaf extractRosemary —

Bilberry fruit powderbilberry Generally Safe

Super Foods BlendBlend (Herb/Botanical)—

Mangosteen PowderMangosteen—

Acai fruit powderAcai—

Black Cherry powderWild Cherry—

Noni powderNoni—

Cupuacu Fruit PowderCupuacu—

Vegetable BlendBlend (Herb/Botanical)—

Broccoli Juice PowderBroccoli—

Carrot root powderCarrot —

Spinach powderSpinach—

Beet root powderBeet—

BroccoliBroccoli—

Cauliflower powderCauliflower —

Tomato Paste PowderTomato—

Fruit BlendBlend (Herb/Botanical)—

Whole Apple PowderApple—

Blueberry Puree PowderBlueberry—

Cherry Puree Powdercherry (unspecified)—

Cranberry juice powdercranberry—

Liver Health PowderBlend (Herb/Botanical)—

Milk Thistle {Extract}Milk ThistleGenerally Safe

Artichoke leaf extractArtichoke—

Broad Spectrum Enzyme BlendBlend (non-nutrient/non-botanical)—

AmylaseAmylase—

Protease 4.5Proteolytic Enzymes (Proteases)—

LipaseLipase—

GlucoamylaseGlucoamylase—

Protease 3Proteolytic Enzymes (Proteases)—

BromelainBromelainConditionally Safe

Protease 6Proteolytic Enzymes (Proteases)—

PapainPapainConditionally Safe

CellulaseCellulase—

DiastaseDiastase (unspecified)—

Cellulose Enzyme BlendBlend (non-nutrient/non-botanical)—

HemicellulaseHemicellulase—

Beta-GlucanaseBeta-Glucanase—

PhytasePhytase—

Digestive Enzyme BlendProprietary Blend—

ProteaseProteolytic Enzymes (Proteases)—

Bean BlendBlend—

Fermented Soy Bean PowderSoyConditionally Safe

Garbanzo Bean PowderGarbanzo bean—

Kidney Bean PowderBean—

Black Bean powderBean—

Omega Fatty Acid BlendBlend (Fatty Acid or Fat/Oil Supplement)—

high Oleic Sunflower OilSunflower Oil—

Safflower OilSafflower Oil—

Borage OilBorage Oil—

Soy Protein isolateSoy ProteinConditionally Safe

Cane Juice PowderSugar cane—

natural Berry flavorFlavor—

Beet juice powderBeet—

MaltodextrinMaltodextrin—

Xanthan GumXanthan Gum—

Citric AcidCitric Acid—

Mono & DiglyceridesBlend (non-nutrient/non-botanical)—

Soya Lecithinlecithin—

Dipotassium PhosphatePotassiumConditionally Safe

Acesulfame-KAcesulfame potassium—

Ingredient amounts require the full DSLD label. View full label at NIH DSLD →

⛔ High-risk ingredient — documented serious harm

Inositol — GDM prevention — 4 g/day from first trimester in high-risk women [2]

⚠️ Use with caution — restricted in some markets

Vitamin D — Granulomatous diseases (sarcoidosis, TB) — unregulated extra-renal CYP27B1 can cause life-threatening hypercalcemia even at standard doses [2][21]

Thiamin — Wernicke encephalopathy: classic triad (confusion, ophthalmoplegia, ataxia) is present in only 16% of cases — any ONE element in an at-risk patie…

Vitamin B6 — Sensory neuropathy from chronic high-dose B6 (>200 mg/day) — presents as numbness, ataxia. Can be irreversible. Often self-prescribed by patients…

Vitamin B12 — Nitrous oxide anesthesia in subclinically B12-deficient patients can precipitate acute combined degeneration — always check B12 before elective p…

Iron — Iron supplementation in iron-replete patients may increase cardiovascular and cancer risk — always document deficiency before prescribing [1].

Magnesium — Severe deficiency (<0.50 mmol/L) causes secondary hypocalcemia and hypokalemia that will not correct until magnesium is repleted first [1].

Zinc — Chronic zinc >40 mg/day without copper causes copper deficiency: anemia, neutropenia, myeloneuropathy [1].

3 Safety cross-reference

Sodium — Conditionally Safe

⚠ Hypertension

⚠ Fluid retention

Potassium — Conditionally Safe

⚠ Hyperkalemia risk

⚠ Dangerous with ACE inhibitors

Vitamin A — Conditionally Safe

⚠ Teratogenic at high doses

⚠ Hepatotoxic with chronic excess

Vitamin C — Generally Safe

⚠ GI distress at high doses

⚠ Kidney stones risk >1g/day

Vitamin D — Use with Caution

⚠ Hypercalcemia at >10,000 IU/day

⚠ Vascular calcification risk

Vitamin E — Conditionally Safe

⚠ Increased bleeding risk

⚠ All-cause mortality at >400 IU/day

Thiamin — Use with Caution

⚠ Very low toxicity

Riboflavin — Generally Safe

⚠ Harmless yellow urine

Niacin — Conditionally Safe

⚠ Flushing at >50 mg

⚠ Hepatotoxicity at high doses

Vitamin B6 — Use with Caution

Folate — Conditionally Safe

⚠ May mask B12 deficiency

⚠ Colorectal cancer risk debated

Vitamin B12 — Use with Caution

Biotin — Generally Safe

⚠ Interferes with troponin and thyroid lab assays

Pantothenic Acid — Generally Safe

⚠ Diarrhea at very high doses

Calcium — Conditionally Safe

⚠ Cardiovascular risk debated >1,000 mg/day

⚠ Kidney stones

Iron — Use with Caution

⚠ GI upset, constipation

⚠ Fatal toxicity in children

Iodine — Conditionally Safe

⚠ Thyroid dysfunction at excess

⚠ Kelp: variable content

Magnesium — Use with Caution

⚠ Diarrhea (especially oxide)

⚠ Accumulates in renal impairment

Zinc — Use with Caution

⚠ Copper deficiency at >40 mg/day

⚠ Nausea, metallic taste

Selenium — Conditionally Safe

⚠ Selenosis >400 mcg

⚠ Diabetes risk at high doses

Copper — Conditionally Safe

⚠ Hepatotoxicity at high doses

Manganese — Conditionally Safe

⚠ Neurotoxicity with chronic excess

Chromium — Conditionally Safe

⚠ Hypoglycemia with diabetes meds

⚠ Rare renal/hepatic toxicity

Molybdenum — Generally Safe

⚠ Very low toxicity

Boron — Conditionally Safe

⚠ Reproductive toxicity in animals

Silicon — Generally Safe

⚠ Very low toxicity

Alpha-Lipoic Acid — Conditionally Safe

⚠ May lower blood glucose

⚠ May lower thyroid hormones

Inositol — High risk

⚠ GI disturbance at high doses (>12 g)

⚠ May lower blood glucose

Choline — Generally Safe

⚠ Fishy odor at high doses

Inulin — Generally Safe

⚠ Gas, bloating — start low

Lutein — Generally Safe

⚠ Harmless skin yellowing at very high doses

Glutathione — Limited Evidence

⚠ Limited oral bioavailability data

⚠ May affect zinc levels

Barley Grass — Limited Evidence

⚠ Celiac: grass should be gluten-free but contamination possible

⚠ GI discomfort

Chlorella — Generally Safe

⚠ Contamination risk

⚠ May affect warfarin (vitamin K content)

Spirulina — Limited Evidence

⚠ Contamination risk: microcystins, heavy metals

⚠ Autoimmune stimulation

bilberry — Generally Safe

⚠ May increase bleeding risk at high doses

⚠ May lower blood glucose

NAC — Limited Evidence

⚠ GI upset

⚠ Rare bronchospasm

Milk Thistle — Generally Safe

⚠ Mild GI

⚠ Asteraceae allergy

Bromelain — Conditionally Safe

⚠ Increased bleeding risk

⚠ GI upset

Papain — Conditionally Safe

⚠ Allergic reactions

⚠ Increased bleeding risk

Beta-Glucan — Limited Evidence

⚠ Immune stimulation

⚠ GI effects

Soy Protein — Conditionally Safe

⚠ Isoflavones: estrogenic effects debated

⚠ Thyroid function may be affected

4 Label claims

• Nutrient

• All Other

• Structure/Function

5 Data source

DSLD ID27203

Full labelView at NIH DSLD →

SourceOffice of Dietary Supplements, NIH

Market statusOn market

Entry date2013-10-25

6 More from GNC Ultra Mega Green

View GNC Ultra Mega Green Safety Scorecard → 3 products

Active Mixed Berry Omega Complex

7 Cite this page

Vancouver

Pkhakadze G. Maximum Nutrition Berry — product analysis [Internet]. Tbilisi: Public Health Institute of Georgia; 2026 [cited 2026 Oct 17]. Available from: https://supplement.ge/products/maximum-nutrition-berry-27203/

CC BY 4.0. Product data from NIH DSLD; safety analysis by SupplementIndex.

Analyzed by SupplementIndex

PHIG · Editor-in-Chief: Prof. Giorgi Pkhakadze, MD, MPH, PhD

Product data sourced from the NIH Dietary Supplement Label Database (DSLD). Safety cross-referencing by SupplementIndex. This analysis is for informational purposes only. For corrections: info@accreditation.ge.
Publisher: PHIG