Final answer:
While increasing protein intake through supplements like gelatin could potentially strengthen hair and nails, a balanced and healthy diet typically provides sufficient protein for an otherwise healthy individual, without the need for extra supplementation.
Step-by-step explanation:
Increasing protein intake, such as by taking gelatin supplements, might contribute to the strength of hair and nails, which are made of keratin, a type of protein. However, it is important to consume protein in a balanced manner because excessive intake may lead to other health issues such as kidney pressure and potential bone loss due to calcium leaching. While some protein supplements can be beneficial, it is essential to be aware that not all supplements are created equally, and some may use practices like ‘protein spiking’ to give a false impression of protein content. Amino acid supplements, often touted for muscle building, have not shown significant benefits over maintaining a healthy diet. For an otherwise healthy individual, balanced dietary protein is likely sufficient to support hair and nail health without the need for additional supplementation. It should be noted that while lack of protein can lead to hair loss due to the conservation of protein for critical bodily functions, proper intake supports the bodily structures such as hair and nails.