Skinks gain weight the way they do everything else: slowly, steadily, and without announcing it. A skink that begs eagerly can still be carrying far more fat than it should, because appetite says almost nothing about condition. The reliable evidence is shape, checked from overhead and in profile, backed up by a monthly weight that turns an impression into a trend you can act on.
Shape First: The View From Above
Look down on the skink first. A skink in good condition keeps a smooth taper, the body widest around the middle and narrowing cleanly toward the tail, with the outline flowing rather than bulging. When that taper is gone, the body reads as one even width from shoulders to hips, and the narrowing toward the tail fills out into a straight or rounded edge. From the side, check the neck and the body line. Jowls are a clear side sign: soft padding along the neck and under the jaw that thickens the head into the shoulders, where a lean skink shows a distinct neck. Then check the points where each leg meets the body, because folds of fat gather along the flanks there first, small rolls that bunch when the skink turns or settles. The three signs together describe a skink carrying too much weight.
Weigh Monthly and Photograph From Above
Shape judgments drift, because you see the skink every day and gradual gain hides inside that familiarity. A monthly weighing fixes the drift. Weigh it monthly, on the same scale, in the same way, ideally in a tub it can sit in calmly, and write the number down rather than trusting memory. Photograph it from above in the same pose at the same check, because a row of overhead photos shows a widening outline honestly. Judge the trend across several months rather than reacting to one reading. A steady climb across two or three monthly checks, alongside the shape signs, is the point where portions need to shrink. A sudden weight change in either direction, or gain paired with a drop in appetite or activity, is a different matter and deserves a vet conversation, since rapid change can reflect something a vet should investigate rather than a feeding adjustment at home.
Portions Set by the Trend, Not the Begging
Skinks are persuasive feeders, stationing themselves where food appears and watching every movement near the enclosure as if the last meal were a rumor. Let the shape signs and the monthly trend set the portions instead. If it is overweight, reduce the overall amount gradually, keep the feeding rhythm the same, and make richer items rare offerings rather than regular parts of the menu. Movement helps too: time out of the enclosure to walk, and an enclosure arranged so the skink travels between heat, water, and food. Recheck with the same monthly weighing and the same overhead photo, and hold the smaller portions until the taper starts to reappear, which takes months rather than weeks in a slow-metabolism animal.
One Portion Rule for the Whole Household
An overweight skink in a shared home usually has more than one feeder, and the extra food rarely comes from the main meal. It comes from a second person offering a treat, a child adding a favorite item, or a weekend feeder guessing at portions, none of it recorded anywhere. Agree the feeding amount as a household and write it where the family can see it: nobody adds extra food or treats between meals, and any change to portions is written down rather than passed along by word of mouth. Keep the monthly weight beside that written rule too, so everyone judges the same trend.
Chosen relatives can view that profile once you open access to them through Family Sharing on KinsLe.