Consider the following pairs:

Updated 11 Apr 2026 · From UPSC Prelims GS Paper I 2017, Q87

Contents17
UPSC Prelims GS2017Science and Technology

Consider the following pairs:

Commonly used/consumed materials Unwanted or controversial chemicals likely to be found in them
1. Lipstick Lead
2. Soft drinks Brominated vegetable oils
3. Chinese fast food Monosodium glutamate

Which of the pairs given above is/are correctly matched?

  1. A1 only
  2. B2 and 3 only
  3. C1 and 3 only
  4. D1, 2 and 3
Show answer

Answer: (D) 1, 2 and 3

All three pairs are correctly matched:

(1) Lipstick – Lead:
Lead is a common impurity found in cosmetic lip products like lipsticks.
Studies by the US FDA and various consumer groups have detected trace amounts of lead in many lipstick brands.
Lead is a toxic heavy metal and even small amounts are a health concern.

(2) Soft drinks – Brominated vegetable oils (BVO):
BVO is a food additive that has been used in some citrus-flavoured sodas and soft drinks to keep the citrus flavouring evenly distributed (emulsified) in the liquid rather than floating to the top.
BVO is banned as a food additive in Europe and Japan due to health concerns, though it was permitted in some countries in limited quantities.

(3) Chinese fast food – Monosodium glutamate (MSG):
MSG is a flavour enhancer widely used in Chinese fast food and other Asian cuisines.
It is a salt of glutamic acid, a non-essential amino acid, and acts as a neurotransmitter.
MSG has been controversial because some people report adverse reactions (sometimes called 'Chinese Restaurant Syndrome'), though scientific evidence on its harmfulness remains debated.
MSG was prominently in Indian news due to the Maggi noodles controversy.

Since all three pairs are correctly matched, the answer is (d).

Why this was asked

Lead in lipsticks, BVO in soft drinks, and MSG in Chinese food represent three major categories of food and cosmetic safety concerns that regularly appear in consumer protection studies and regulatory discussions.

The Maggi noodles controversy in India around 2015 brought MSG and food additive safety into major public attention, making this a relevant current affairs connection for UPSC.

This question tests knowledge of specific chemical contaminants across different consumer products rather than general food safety principles.

Lead in Cosmetics

Science And Technology Lipstick Lead

Lead in Cosmetics: Sources, Health Risks & Regulatory Response

Must know

Lead is found as trace contamination in many lipsticks and cosmetic products

Lead enters cosmetics through color additives and manufacturing processes, not intentional addition

Even trace amounts of lead pose health risks due to bioaccumulation

Good to know

US FDA and consumer groups regularly test cosmetics for lead content

Why Lead Appears

Lead is not intentionally added to cosmetics but appears as contamination through color pigments and manufacturing processes. It's particularly common in red and pink lipsticks due to the lead content in certain color additives.

Health Impact Comparison

Exposure Level

Health Effects

Concern Level

Population at Risk

Trace amounts

Gradual bioaccumulation

Moderate

Regular users

Chronic exposure

Neurological damage, reproductive issues

High

Daily cosmetic users

Children's exposure

Developmental delays

Very High

Kids using adult cosmetics

Regulatory Response

US FDA sets no specific limit but monitors lead levels through regular testing

Canada has established maximum lead limits of 10 ppm in cosmetics

Consumer advocacy groups like Campaign for Safe Cosmetics push for stricter standards

Many brands now voluntarily test and disclose lead content

Exam traps

Trap: Assuming lead is intentionally added - it's actually contamination from color additives

Trap: Thinking 'trace amounts' are safe - lead bioaccumulates with no safe threshold

Trap: Believing only cheap cosmetics contain lead - premium brands also show contamination

Brominated Vegetable Oils

Science And Technology Soft drinks Brominated vegetable oils

Brominated Vegetable Oils (BVO): Function, Controversy & Global Bans

Must know

BVO acts as an emulsifier to keep citrus oils distributed in soft drinks

Banned in Europe and Japan due to health concerns about bromine accumulation

Found primarily in citrus-flavored sodas like Mountain Dew and some sports drinks

Good to know

US FDA removed BVO from 'Generally Recognized as Safe' list in recent years

Technical Function

BVO is created by bonding vegetable oil with bromine atoms. In citrus-flavored beverages, it prevents citrus oils from floating to the surface by matching their density, creating uniform flavor distribution throughout the drink.

Global Regulatory Status

Region/Country

Status

Year of Action

Reason

European Union

Banned

1970s

Health concerns about bromine

Japan

Banned

1980s

Potential organ damage

United States

Restricted/Phasing out

2020s

FDA safety review

India

Permitted with limits

Current

Following international trends

Health Concerns

Bromine accumulation in fatty tissues over time with regular consumption

Potential neurological effects including memory loss and coordination issues

Thyroid disruption as bromine competes with iodine absorption

Studies linked high BVO intake to bromism - bromine poisoning symptoms

Exam traps

Trap: Thinking BVO is in all soft drinks - it's mainly in citrus-flavored varieties

Trap: Confusing BVO with other food preservatives - it's specifically an emulsifier

Trap: Assuming BVO is completely banned in US - it's being phased out gradually

Monosodium Glutamate (MSG)

Science And Technology Chinese fast food Monosodium glutamate

Monosodium Glutamate (MSG): Chemistry, Uses & Controversy

Must know

MSG is the sodium salt of glutamic acid, a naturally occurring amino acid

Widely used as flavor enhancer in Asian cuisines and processed foods

Creates umami taste - the fifth basic taste alongside sweet, sour, salty, bitter

Good to know

Scientific consensus shows MSG is safe for most people despite ongoing controversy

Chemical Nature

MSG is chemically identical to glutamic acid found naturally in foods like tomatoes, cheese, and mushrooms. When added to food, it separates into glutamate and sodium - the same components your body produces during protein digestion.

Natural vs Added Glutamate Sources

Source Type

Examples

Glutamate Content

Consumer Perception

Natural foods

Tomatoes, cheese, mushrooms

High levels

Generally accepted

Added MSG

Chinese food, instant noodles

Controlled amounts

Often controversial

Processed foods

Chips, soups, sauces

Hidden as 'natural flavors'

Less awareness

The MSG Controversy

'Chinese Restaurant Syndrome' - reported symptoms like headache, nausea after eating MSG-rich food

Double-blind studies consistently fail to reproduce symptoms under controlled conditions

Nocebo effect - symptoms may be psychological rather than physiological

FDA classification - 'Generally Recognized as Safe' despite public concerns

India Connection

MSG gained prominence in India during the Maggi noodles controversy when lead content and MSG labeling issues led to nationwide ban and market withdrawal in 2015.

Exam traps

Trap: Believing MSG is artificially synthesized - it's chemically identical to natural glutamate

Trap: Thinking 'Chinese Restaurant Syndrome' is proven - studies show no consistent evidence

Trap: Assuming MSG is banned anywhere - it's approved globally with safety limits

Food Additive Safety & Regulations

Science And Technology

Food Additive Safety: Regulatory Framework & Approval Process

Must know

FSSAI regulates food additives in India under Food Safety and Standards Act 2006

ADI (Acceptable Daily Intake) determines safe consumption limits for each additive

Good to know

Codex Alimentarius provides international standards adopted by most countries

GRAS (Generally Recognized as Safe) is US system for additive approval

Additive Approval Process

%%{init: {"flowchart": {"wrappingWidth": 460}}}%%
flowchart TD
  s1["`****Safety Studies****
Toxicology tests, animal studies, human trials`"]
  s2["`****Risk Assessment****
Determine ADI and safe usage levels`"]
  s3["`****Regulatory Review****
FSSAI/FDA evaluation of safety data`"]
  s4["`****Public Consultation****
Industry and consumer feedback period`"]
  s5["`****Approval & Monitoring****
Licensed use with ongoing surveillance`"]
  s1 --> s2
  s2 --> s3
  s3 --> s4
  s4 --> s5

Key Regulatory Bodies

Region

Authority

Key Legislation

Approach

India

FSSAI

Food Safety & Standards Act 2006

Risk-based approval

United States

FDA

Federal Food Drug & Cosmetic Act

GRAS system

European Union

EFSA

Food Additives Regulation

Precautionary principle

Global

Codex Alimentarius

WHO/FAO Standards

International harmonization

Stricter labeling requirements - clear declaration of all additives and their functions

Phase-out of controversial substances - like artificial trans fats, certain colorants

Enhanced post-market surveillance - continuous monitoring after approval

Consumer awareness campaigns - educating public about additive safety and reading labels

Exam traps

Trap: Confusing FSSAI with FSSA - FSSAI is the authority, FSSA is the act

Trap: Thinking 'natural' means safer - many natural compounds are toxic at high doses

Trap: Assuming banned in one country means globally banned - regulations vary significantly