Understanding Biotin in Foods: A Closer Look at the Vitamins and Minerals in Koala Hair & Nail Bites

When looking at foods containing added vitamins and minerals, one ingredient that frequently attracts attention is biotin.

Also known as vitamin B7, biotin belongs to the group of water-soluble B vitamins. It occurs naturally in foods and can also be included as an ingredient in formulated foods.

But biotin rarely appears alone. Foods containing biotin may combine it with other vitamins and minerals, which makes the complete nutrient profile just as important as the headline ingredient.

So, what exactly is biotin, and how does it fit alongside vitamin C, zinc, vitamins B5 and B6, vitamins A, D and E, and iodine in Wealthy Health Koala Hair & Nail Bites?

What Is Biotin?

Biotin is a water-soluble B vitamin, commonly referred to as vitamin B7 or vitamin H.

Scientific literature describes biotin as a naturally occurring micronutrient found across a variety of foods. Research measuring biotin in foods has also found considerable variation in its concentration between different food sources. [1,2]

From a food-composition perspective, this highlights an important distinction: knowing that a food contains biotin is different from knowing how much biotin it contains.

For formulated foods, the declared nutrition information provides the relevant quantity in the finished product.

Key Facts About Biotin

1. Biotin belongs to the B-vitamin family

Biotin is a water-soluble vitamin commonly known as vitamin B7 or vitamin H. [1]

2. Biotin occurs naturally in foods

Biotin has been identified in a variety of foods, although measured concentrations vary considerably between food sources. [2]

3. Biotin can be measured in finished foods

Analytical techniques are available for determining biotin concentrations in foods and formulated food products. [3]

This is particularly useful when comparing foods that both contain biotin, because their actual declared quantities may be quite different.

Wealthy Health Koala Hair & Nail Bites?

Wealthy Health Koala Hair & Nail Bites are creamy vanilla-flavoured, koala-shaped chewable foods containing a blend of vitamins and minerals.

The formula contains vitamin C, biotin, zinc, vitamin B5, vitamin B6, vitamin E, vitamin A, vitamin D and iodine.

Each pack contains 60 Koala Bites with a net weight of 30 g, making each bite approximately 0.5 g.

The suggested use is 1–2 Koala Bites daily as part of a balanced diet.

What Does Each Koala Bite Contain?

The supplied nutrition information declares nine vitamins and minerals.

Nutrient	Per 100 g	Approx. per Bite (0.5 g)	Approx. per 2 Bites (1 g)
Vitamin C	3,070 mg	15.35 mg	30.7 mg
Zinc	154 mg	0.77 mg	1.54 mg
Vitamin B5	179 mg	0.895 mg	1.79 mg
Vitamin B6	154 mg	0.77 mg	1.54 mg
Vitamin E	922 mg	4.61 mg	9.22 mg
Vitamin A	15.4 mg	77 µg	154 µg
Vitamin D	0.1 mg	0.5 µg*	1 µg*
Biotin	2.6 mg	13 µg	26 µg
Iodine	3.8 mg	19 µg	38 µg

The per-bite values are calculated from the supplied per-100-g information based on an approximate bite weight of 0.5 g.

*The supplied vitamin D value is stated as 0.1 mg per 100 g. Because this is relatively coarsely rounded, the final approved product label should be checked before publishing a more precise converted value.

Looking Beyond Biotin

Biotin may be the lead ingredient in this discussion, but the product contains a broader combination of vitamins and minerals.

Vitamin C is a water-soluble vitamin obtained through dietary sources.

Vitamin B5, also known as pantothenic acid, belongs to the water-soluble B-vitamin family. [4]

Vitamin B6 is the name used for a group of related water-soluble compounds belonging to the B-vitamin family. [5]

Vitamins A, D and E are classified as fat-soluble vitamins, while zinc and iodine are mineral nutrients.

For Koala Hair & Nail Bites, the relevant product-specific quantities are shown in the nutrition table above rather than repeated individually throughout the article.

Comparing the Declared Nutrient Profiles

A per-100-g comparison allows the two formulations to be viewed on the same weight basis.

Based on the supplied comparison information:

Nutrient / Component	Koala Hair & Nail Bites	Comparison Product in Market
Vitamin C	3,070 mg	333.3 mg
Biotin	2,600 µg	833.3 µg
Zinc	154 mg	45 mg
Vitamin B5	179 mg	58.3 mg
Vitamin B6	154 mg	50 mg
Vitamin E	922 mg	275 mg
Vitamin A	15,400 µg	3,666.7 µg
Vitamin D	100 µg*	23.3 µg
Iodine	3,800 µg	700 µg
Protein	9.6 g	6.3 g
Energy	884 kJ	1,425 kJ
Carbohydrate	5.1 g	76.9 g

All values in this table are per 100 g.

*Vitamin D has been converted from the supplied declaration of 0.1 mg per 100 g and should be checked against the final approved label before publication.

The comparison shows differences in the declared composition of the two foods. It does not establish differences in absorption, bioavailability or physiological effects.

Carbohydrate values should also be interpreted with care if the products use different analytical or labelling methodologies.

Why Comparing the Actual Amounts Matters

Ingredient lists tell us what is present, while nutrition information tells us how much of a declared nutrient is present.

For example, both foods can contain biotin while having different declared concentrations: Koala Hair & Nail Bites contain 2,600 µg per 100 g, compared with 833.3 µg per 100 g in the Comparison Product.

The same principle applies to the other nutrients in the table.

This makes a common per-100-g basis useful for understanding differences between the formulations without making assumptions about what those differences mean physiologically.

What Else Is in Koala Hair & Nail Bites?

Alongside the declared vitamins and minerals, the supplied ingredient information includes:

Mannitol, microcrystalline cellulose, silicon (silicon dioxide), whey protein concentrate (milk), skim milk powder, cream flavour, natural vanilla flavour, magnesium stearate, silicon dioxide and sucralose.

The inclusion of whey protein concentrate and skim milk powder means the product contains milk.

Cream flavour and natural vanilla flavour contribute to its creamy vanilla flavour profile.

Suggested Use and Important Information

Take 1–2 Koala Chews daily as part of a balanced diet.

The supplied product information states that vitamin and mineral products should not replace a balanced diet.

The product contains milk. It also contains mannitol, and excess consumption may have a laxative effect.

Understanding the Formula

Biotin provides a useful starting point for understanding Koala Hair & Nail Bites, but the complete formulation gives a much clearer picture of the product.

Each bite combines biotin with vitamin C, zinc, vitamins B5, B6, E, A and D, and iodine, together with ingredients including whey protein concentrate and skim milk powder.

The nutrition panel allows those nutrients to be quantified, while a per-100-g comparison shows how the declared composition differs from another food in the same category.

For a food product, that is the key distinction: the ingredient list tells us what is included, while the nutrition information tells us how much of the declared nutrients the finished food contains.

References

[1] Said HM. Biotin: biochemical, physiological and clinical aspects. Subcellular Biochemistry. 2012;56:1–19. PMID: 22116691.

[2] Wide Range of Biotin (Vitamin H) Content in Foodstuffs and Powdered Milks as Assessed by High-performance Affinity Chromatography. PMID: 24790379.

[3] Analytical techniques for determining biotin. Journal of Chromatography A. PMID: 10905717.

[4] Freese R, Aarsland TE, Bjørkevoll M. Pantothenic acid – a scoping review for Nordic Nutrition Recommendations 2023. Food & Nutrition Research. 2023;67. PMID: 38187802.

[5] Dias P, et al. Biological properties of vitamins of the B-complex, part 2 – vitamins B6 and B7 (biotin, vitamin H). Nutrition Research Reviews. 2025. PMID: 40443009.

Scientific references describe the identity, dietary occurrence or analysis of the nutrients discussed. They do not establish health or functional effects of Wealthy Health Koala Hair & Nail Bites. Product-specific quantities, ingredients and serving information are based on the supplied product information. Comparison figures are based on the supplied comparison data and are presented on a per-100-g basis for compositional comparison.