Your Protein Powder Might Be Lying.

How bad is the problem?

In 2018, a joint investigation by the Sports and Development Authority of India (SAI) and the National Dope Testing Laboratory (NDTL) tested 36 sports supplements purchased from retail and online markets. Twelve — one in three — were adulterated or mislabelled, with protein content deviating from label claims by 10–40%.¹

India's supplement market sits in a regulatory gap. FSSAI licensing is mandatory for food supplements — and most legitimate brands carry one — but FSSAI does not require manufacturers to independently verify protein claims before sale. The label is self-reported. The manufacturer runs their own tests, or commissions a lab, or in some cases just writes a number. There is no pre-market audit.

This is not a problem unique to cheap brands. A 2020 investigation by Sportskeeda and independent journalist Prateek Kumar found three mid-tier Indian brands — sold at ₹2,000–3,500 per kilogram — with label protein claims 15–22% higher than what independent NABL-accredited lab tests found. The brands denied the findings. None issued a product recall.

The three methods brands use to inflate protein numbers

There is more than one way to cheat a protein test. Understanding the mechanisms helps you evaluate which red flags actually matter.

Method 1: Amino spiking (nitrogen spiking)

The standard protein assay in India — Kjeldahl — measures nitrogen content and multiplies by a fixed factor (6.25 for most protein sources) to estimate protein. The method does not distinguish between nitrogen in intact whey protein and nitrogen in individual amino acids or cheap nitrogen-containing compounds. If you add free-form glycine, taurine, creatine, or glutamine to a batch, the Kjeldahl test reads it as protein. The label says 24g. You got 18g whey protein and 6g of cheap aminos that have little to no anabolic effect at those doses.²

The amino acids used most often for spiking — glycine, taurine, and creatine — are cheap. Glycine runs around ₹120–200/kg in bulk. Pharmaceutical-grade whey isolate runs ₹400–600/kg. Replacing 20% of the whey with glycine cuts ingredient cost meaningfully while preserving the nitrogen count. The buyer does not notice because the taste, texture, and label numbers look normal.

The tell-tale sign: an unusually high glycine, taurine, or glutamine value in the amino acid profile per serving — especially if the brand lists these separately from the BCAA breakdown. Glycine above 1.5g per 30g serving, or taurine appearing at all in a "whey" product with no explicit reason, is suspicious.

Method 2: Low-grade raw material blending

This one is more common than spiking and harder to detect from the label alone. Brands buy cheap WPC-35 or WPC-50 (whey protein concentrate at 35–50% protein by weight) rather than the WPC-80 or WPI (isolate at 90%+) the label implies. The product is labelled "whey protein" without specifying the grade, and the label math works out approximately if you add enough of it per serving — but the quality is poor, lactose content is high, and cost-per-actual-gram-of-protein is terrible for the buyer.

Identifying this requires either a COA from the supplier (which specifies raw material grade) or an independent test. On the label, look for: total fat and carbohydrate per serving relative to protein. A genuine WPC-80 30g serving should yield roughly 24g protein, 2–3g fat, and 2–3g carbs. If fat and carb numbers are higher than that — say, 5g fat and 7g carbs in a 30g scoop claiming 24g protein — the raw material is likely a lower-grade concentrate.

Method 3: Non-protein fillers

Malt dextrin, maltose, desiccated coconut powder, lecithin, and gum fillers are used to add volume without protein content. In small amounts these are legitimate texture and flavour ingredients. The problem is when they occupy so much of the serving weight that actual protein per gram of powder drops well below the claimed percentage. A 30g scoop claiming 24g protein (80% protein by weight) should have very little room for filler. If the "other ingredients" list is long, it's worth asking where that filler is coming from in the macro math.

Red flags on the label and the product

You do not need a lab to get most of the way to a correct decision. These flags are visible before you buy.

Four checks you can actually do

The flags above narrow the field. These four steps, done in order, give you a defensible assessment without needing your own lab.

What the evidence says about specific brands

The table below summarises available independent test data for major Indian and import whey brands. "Independent" means the test was initiated by a third party, not the brand. Brand-commissioned COAs are noted separately. Scores are not our full review scores — they reflect only the dimension of label accuracy on protein content.

Physical checks on the powder itself

These are not definitive — no home test is — but they catch obvious problems and take thirty seconds.

The iodine test for starch/maltodextrin filler

Mix a small amount of protein powder with water. Add two drops of iodine solution (available at most pharmacies in India for ₹30–50). If the mixture turns blue-black, starch or maltodextrin is present in significant quantity. A pure whey protein should turn yellow-brown (iodine's natural colour) with no blue shift. This test is cheap, fast, and catches the most blatant filler cases. It does not catch amino spiking.

Mixing behaviour and foam

Genuine whey protein mixed with water produces moderate foam that dissipates within a minute. Excessive or persistent foam — the kind that sits for several minutes — suggests surfactant additives or high levels of soy lecithin used to mask texture problems from low-quality raw material. Not diagnostic on its own, but consistent with other flags.

Gritty or sandy texture after dissolving

Legitimate WPI dissolves cleanly in cold water with a shaker. Gritty residue points to undissolved filler, low-solubility raw material (common in WPC-35), or creatine added at spiking levels. Again, not conclusive alone — but worth noting if you see other flags.

Compare scoop size to claimed density

A 30g protein scoop should actually weigh 30g. Scales are cheap. Weigh your scoop. If the included scoop delivers 36g of powder but the label says 30g serving, the protein-per-gram ratio is lower than the label implies. Some brands use deliberately oversized scoops to reduce effective serving count.

FSSAI and where regulation currently fails

FSSAI's Schedule K under the Food Safety and Standards (Health Supplements, Nutraceuticals, Food for Special Dietary Use, Food for Special Medical Purpose, Functional Food and Novel Food) Regulations, 2022 governs how protein supplements can be labelled and sold in India. The regulations require that nutrient content labelling be truthful. They do not require pre-market independent verification. Enforcement is reactive — violations are pursued after complaints, not before products reach shelves.

The gap is structural. India's supplement market grew faster than its regulatory apparatus. Until FSSAI mandates pre-market third-party protein verification — as some EU members effectively require through their national food safety frameworks — the burden of proof falls on the buyer. That is not how it should work. But it is how it currently works.

What FSSAI does provide is a complaints mechanism. If you have independent test data showing a product's label protein is materially inaccurate, you can file a complaint with your state food safety commissioner. Several brands have been prosecuted under Section 51 of the FSS Act (2006) for mislabelling. The process is slow. It works more often than people expect when the evidence is solid.

What honest brands actually do

The brands that are not cutting corners have a consistent set of practices. None of them are expensive to implement. Their absence, in a brand that's been operating for more than two years, is telling.

They publish batch-level COAs — not just a generic "our product is tested" claim, but actual lab documents tied to specific batch numbers printed on the package. They disclose their raw material supplier, or at minimum the country of origin for their whey. They list the full amino acid profile per serving on their website, not hidden in a PDF that takes four clicks to find. When an independent test comes back slightly off from label, they investigate the batch and respond publicly rather than disputing the test.

AS-IT-IS Nutrition is probably the domestic benchmark here. Their NABL COAs are available on the product listing page, updated quarterly, and the amino acid profile is printed on the pack itself. That is not hard to do. It is just not standard. The brands that do not do it have chosen not to.