Naturaltein · Reviewed by Trustified · Published 2026-07-17
Based on a review by Trustified (accessed 2026-07-17).
Based on this review alone: buy it if you care about passed all blind lab testing levels (no amino spiking, heavy metals, aflatoxins, pesticides detected) — just accept minor deviations found in claimed versus lab-tested macro percentages (protein and carbohydrates).
The reviewer concludes that Naturaltein Thandai Yeast Protein passed all blind testing levels for contaminants and showed good mixability and excellent taste, masking the typical yeast aftertaste. While minor deviations in protein and carbohydrate macros were found, the product is considered an affordable and good option.
This review presents the results of a blind lab test conducted on Naturaltein Thandai Yeast Protein. It covers the product's nutritional accuracy, presence of contaminants, serving size, mixability, and taste profile. The reviewer systematically tests various aspects of the protein powder.
This fermented yeast protein is a highly recommended option for those seeking a clean and palatable protein source, as it successfully passed all stringent blind lab tests. Laboratory analysis confirmed no amino spiking, heavy metals, aflatoxins, or pesticides were detected, ensuring its purity. Furthermore, the product boasts excellent mixability with no lumps after 15 seconds, and its Thandai flavor effectively masks the typical yeast aftertaste; however, minor deviations in the claimed versus tested macro percentages were noted. If you prioritize a rigorously tested, pure protein that also delivers a pleasant and unique taste experience, this is a strong contender. If precise macro labeling is your utmost concern, you might need to account for slight variances.
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Trustified conducts 100% blind testing by ordering products from anonymous IDs to different addresses, then sending one sealed product with the same batch number to a laboratory for testing.
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The company claims 73.58% protein on its label, derived entirely from Fermented Yeast Protein Isolate.
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According to the lab test report, the protein percentage was found to be 67.59%, which is a deviation from the claimed 73.58%.
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The company claims 25.7 grams of protein per 35-gram serving.
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The lab test report found 23.6 grams of protein per serving, a deviation from the claimed 25.7 grams.
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The company claims 2.89 grams of carbohydrates per serving.
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The lab test report found 5.42 grams of carbohydrates per serving, which is higher than the claimed 2.89 grams.
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Level 2 amino acid profile testing found no sign of amino spiking, with melamine detected below LOQ.
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All heavy metals tested in the product were found to be below LOQ (Limit of Quantification).
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Aflatoxin M1, B1, B2, G1, and G2 were all detected below LOQ.
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No pesticides were detected in the product; only elemental copper was found, which is within safe limits.
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Using a kitchen weighing scale, the reviewer found the 35-gram serving size to be accurate when measured with a level scoop.
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After mixing for 15 seconds, no lumps were found, and the product mixed perfectly, earning a 5 out of 5 stars for mixability.
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The reviewer states this is the best-tasting yeast protein powder they've tried, tasting exactly like Thandai with the flavor masking the yeast aftertaste. It received 5 out of 5 stars for taste.
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The product is priced affordably for a yeast protein at ₹1900 for 1kg, providing 28 servings and a cost per serving of ₹68.
The company claims 73.58% protein and 25.7 grams per serving, but lab tests found 67.59% protein and 23.6 grams per serving. The reviewer notes that a plus-minus 10% deviation in lab reports is considered normal and acceptable.
The product showed no signs of amino spiking (melamine below LOQ), and all heavy metals, aflatoxins (M1, B1, B2, G1, G2), and pesticides were found below LOQ or not detected, indicating a clean and safe product.
The company claims 2.89 grams of carbohydrates per serving, but the lab test report found 5.42 grams, which is a notable deviation from the stated claim.
The reviewer tested the serving size using a kitchen weighing scale and confirmed that a level scoop accurately measures the claimed 35 grams, as no 'heaping scoop' was specified.
The reviewer performed a 15-second mixability test and found no lumps, concluding that it mixes perfectly and giving it a 5 out of 5 stars rating for mixability.
The reviewer highly praised the Thandai flavor, calling it the best-tasting yeast protein they've tried. They noted that it tastes precisely like Thandai, with aromatic spices, and completely masks any typical yeast aftertaste, earning a 5 out of 5 stars for taste.
The reviewer highlights its affordability, stating it costs ₹1900 for 1kg, which provides 28 servings, making the cost per serving approximately ₹68. This positions it as a reasonably priced yeast protein.
100/100 source quality
Trustified conducted a 100% blind lab test on Naturaltein Thandai Yeast Protein, verifying its ingredient claims and testing for contaminants. The product was analyzed for protein percentage, carbohydrates, amino acid spiking, heavy metals, aflatoxins, and pesticides. Additionally, its serving size accuracy, mixability, and taste were evaluated. The review found that the protein passed all contaminant tests, mixed perfectly without lumps, and offered an excellent Thandai flavor that successfully masked the yeast aftertaste, despite minor deviations in its claimed macronutrient profile.
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This page converts Trustified's review of the Naturaltein Naturaltein Thandai Yeast Protein into structured evidence — timestamped claims, pros & cons, and buyer questions. It is not the original review and does not replace watching or reading the full source.
Brand relationship disclosed as: affiliate