Height seekers have often theorized that it should be possible to use bone smashing to increase height via increasing calcaneal size. There are also other theorized methods for doing this. I have not seen anecdotal cases of this working. It should be a small and slow increase in height in any case.

Feet and heel implants have been discussed in the past.

Here’s recent research:

Treatment with Hyaluronic Acid Filler into Calcaneal Fat Pad for Height Augmentation

“The heel fat pad plays a crucial role in shock absorption during walking, yet clinical strategies to augment its thickness for height enhancement remain underexplored. This case report presents the novel use of cross-linked hyaluronic acid (HA) injections into the calcaneal fat pad as a method for height augmentation. A 37-year-old male, with a height of 162.5 cm, sought a permanent solution to increase his stature. After discussing various options, 10 cc of HA filler (e.p.t.q. eve X, JETEMA Co. Ltd, Korea) was injected into each heel pad under ultrasonographic guidance to ensure precise and safe delivery into the deep adipose tissue. The procedure resulted in an immediate 1.2 cm height increase, which persisted as a 1.7 cm gain at both the 6-month and 1-year follow-up assessments. The patient reported high satisfaction with the outcome, particularly noting improved self-confidence. This case highlights the potential of HA fillers for height augmentation, offering a non-invasive, durable alternative for individuals seeking such enhancements. However, further studies with larger sample sizes and extended follow-up are required to fully assess the long-term efficacy and safety of this technique, particularly concerning risks such as filler migration or uneven distribution”

A near 2 cm increase for cheap and with minimal side effects could be a great way for height seekers to gain some easy height gain. Maybe you could potentially inject other sites as well.

“Our approach targeted the deep layer of the heel fat pad, where anatomical studies indicate minimal vascular structures, thereby minimizing complication risks. Previous studies have reported an average heel pad thickness of 1.7 ± 0.3 cm, which safely accommodates the filler without affecting vascular integrity”

This person is flat footed. It would be interesting to see how biomechanics would be affected more with a different arch size.

We’d have to know the side effects and cost to determine if it’s worth or not. Looking up the cost it can be be about 600-1500$ which is not bad for almost an inch.